Tag Archives: Pcr Test

Revolutionizing Influenza Virus Detection: The Power of Plasma-Treated Swabs

Revolutionizing Influenza Virus Detection: The Power of Plasma-Treated Swabs

Posted on by

As flu season approaches, the need for swift and accurate diagnostics has never been more crucial. While influenza may not evoke the same level of concern as some other infectious diseases, its high transmission rate and potential complications pose a significant public health challenge.

Among the key tools in detecting influenza through PCR testing lies a seemingly simple yet vital component: sampling swabs.

Thanks to innovative advancements, these swabs are now more effective than ever, leveraging cutting-edge plasma treatment technology to enhance detection sensitivity.

Sampling Swabs: The Unsung Heroes of Accurate Diagnostics

COVID-19 Testing Sampling

Throat swab: Professional operation is required, because the throat is more prone to injury, flocking swabs are the first choice.

The effectiveness of PCR testing largely depends on the quality and quantity of the collected sample. Swabs, as the primary tool for sample collection, play a pivotal role. However, insufficient sample collection remains a common issue, especially during the early stages of infection when viral concentration is low.

By optimizing the absorbent properties of swabs, it becomes possible to gather a greater quantity of sample material, thereby significantly improving diagnostic accuracy and sensitivity. The breakthrough innovation driving this transformation is plasma treatment.

What Is Plasma Treatment, and How Does It Improve Swabs?

Cleaning Validation swabs

Plasma, often referred to as the “fourth state of matter,” is created by continuously applying energy to a gas, producing a mix of charged particles, including electrons and ions. Plasma treatment modifies the surface characteristics of swabs, greatly enhancing their ability to absorb liquid samples.

Key findings from laboratory studies:

  • Plasma-treated swabs exhibit up to 4 times the water absorption capacity of standard commercial swabs.
  • Even when sample material is highly diluted (1,000 copies/µl), plasma-treated swabs reliably capture sufficient material for successful PCR detection.

Importantly, plasma treatment does not damage the swab material and is fully compatible with sterilization methods such as gamma radiation.

Benefits of Plasma-Treated Swabs

  1. Enhanced Absorption Capacity
    Improved hydrophilic properties allow the swab to collect more sample material, ensuring higher sampling efficiency.
  2. Increased Detection Sensitivity
    By lowering the detection limit, plasma-treated swabs significantly improve the accuracy of influenza virus testing, especially during early infection stages.
  3. Versatility Across Testing Scenarios
    These optimized swabs are suitable for both professional testing centers and home self-testing kits, increasing the reliability of results and reducing the burden on testing facilities.
  4. Broader Medical Applications
    applied to a variety of medical devices, enhancing their performance in different healthcare contexts.

Innovation Empowering Influenza Control

Flocked Tip Swab Picture Covid Adalah Fda Viral Transport Medium VTM

Flocked Tip Swab Picture Covid Adalah Fda Viral Transport Medium VTM

In the fight against influenza, every technological advancement contributes to safeguarding public health. Plasma-treated swabs are not just tools for better sample collection—they represent a significant leap forward in diagnostic precision and reliability.

By improving the performance of a simple yet critical component, this technology ensures faster and more accurate detection of influenza, enabling timely intervention and treatment.

Discover the Future of Diagnostics

This groundbreaking plasma treatment technology isn’t limited to influenza diagnostics—it has the potential to transform sampling tools for a wide range of medical applications.

Are you ready to experience the future of diagnostic innovation? Contact us today for detailed reports and product information.

Dog DNA Tests

Dog DNA Tests

With plasma treatment, the humble swab has become a powerful ally in disease detection. This innovation is a testament to how small advancements in tools can lead to monumental progress in healthcare. Together, let’s redefine diagnostic excellence—one swab at a time.

Flocked Nasopharyngeal Swabs : A Highly Effective Tool for Accurate Pertussis Detection

Flocked Nasopharyngeal Swabs : A Highly Effective Tool for Accurate Pertussis Detection

Posted on by

Pertussis, also known as whooping cough, is a highly contagious respiratory disease that spreads rapidly, particularly among infants and individuals with weakened immunity.

Due to its early symptoms resembling those of the common cold, it is often overlooked, making accurate and rapid diagnosis crucial for timely treatment and prevention.

In this process, flocked NP swabs stand out as a core tool for pertussis detection due to their superior sampling performance and versatility.

This article delves into the critical role of flocked nasopharyngeal swabs in Bordetella pertussis detection, highlighting their design advantages, applications, and usage methods, providing comprehensive guidance for medical institutions and professionals.

In This Article

Respiratory Swab Collection

1. Importance of Flocked Nasopharyngeal Swabs in Pertussis Detection

Early diagnosis of pertussis relies heavily on respiratory specimen collection and testing, with flocked nasal swabs playing an indispensable role in the sampling process.

1.1 Precise Sampling Ensures Accurate Detection

Bordetella pertussis colonizes the ciliated epithelial cells of the respiratory tract, making the collection of nasopharyngeal secretions essential for obtaining reliable samples.

Nasopharyngeal sampling sticks, made with specialized materials, feature a flocked design that significantly improves secretion collection, especially those containing Bordetella pertussis.

Compared to traditional throat swabs, nasopharyngeal collection tools conform better to the nasopharyngeal region, achieving higher positive isolation rates and improving sample quality. This reduces detection errors and provides stable results for subsequent PCR testing or bacterial culture.

1.2 Compatible with Multiple Detection Methods

Collected samples can be used for various detection techniques, including:

  • PCR Testing: Fast and sensitive, providing results within hours and suitable for early-stage diagnosis.
  • Bacterial Culture: Though time-consuming, it offers detailed analysis of bacterial characteristics, aiding further treatment.

The combination of these methods enables a comprehensive assessment of pertussis progression, laying a foundation for precise treatment.

Flocked Swabs For Sample Collection

Flocked swabs have spray-on nylon flocked fibre technology allowing for improved collection and release of the patient samples.

2. Design Advantages of Flocked Nasopharyngeal Swabs

2.1 Efficient Sample Collection and Release

The core advantage of nasal cavity swabs lies in their unique flocked structure, which ensures secure adhesion of secretions upon contact with the nasopharyngeal area. During laboratory testing, these swabs easily release the collected samples, preserving sample integrity and minimizing loss.

2.2 Soft and Comfortable Design

Since the sampling site is sensitive, swabs must balance efficiency and comfort.

Deep nasal swabs use flexible materials and a soft, slender design, reducing discomfort during sampling. This makes them particularly suitable for sensitive groups, such as infants.

2.3 Safe and Hygienic Packaging

To ensure hygiene and safety, flocked nasopharyngeal swabs are typically packaged in individually sealed paper-plastic bags or tube transport containers. These designs effectively prevent external contamination. Additionally, irradiation sterilization minimizes infection risks, ensuring sterile sampling.

3. Broad Applications of Flocked Nasal swabs

Nasal Swab Test

A nasopharyngeal culture is a test that examines a sample of secretions from the uppermost part of the throat, behind the nose,.

3.1 Suitable for a Wide Range of Patients

Nasopharyngeal sample swabs are suitable for people of all ages, including:

  • Infants: A high-risk group for pertussis requiring early screening.
  • Adolescents: Frequent social activities make this group prone to disease transmission.
  • Adults: Often asymptomatic carriers who can spread the disease.

This wide applicability makes these swabs indispensable for clinical diagnostics and epidemiological studies.

3.2 Quick Sampling for Mass Testing

The sampling process for nasopharyngeal swabs is simple and fast. Compared to blood or sputum collection, it requires minimal equipment and can be completed quickly, making it ideal for large-scale screening.

4. Usage Instructions and Precautions

4.1 Sampling Procedure
  1. Preparation: Healthcare professionals wear gloves and check the integrity of the swab packaging, ensuring sterility.
  2. Sampling: Insert the flocked nasopharyngeal swab into the patient’s nasal cavity, rotating gently to contact the nasopharyngeal area and ensure adequate secretion absorption.
  3. Sample Storage: After collection, place the swab into a transport tube and seal it securely. Transfer it to the laboratory promptly for testing.
4.2 Precautions
  • Perform sampling gently to minimize patient discomfort.
  • Ensure a clean and sterile sampling environment to avoid contamination.
  • Transport samples to testing facilities as soon as possible to prevent result inaccuracies due to delays.

5. Case Study: Yousite Flocked Nasopharyngeal Swabs

Yousite is a leading brand in the field of NP specimen collectors, offering products with the following features:

  • High Sampling Efficiency: Unique flocked materials enhance secretion collection and release capabilities.
  • Comfortable Design: Flexible and soft, suitable for all age groups.
  • Safe Packaging: Individually sealed and sterilized for optimal hygiene.

Yousite flocked nasal swabs support multiple testing methods, making them an ideal choice for medical institutions seeking reliable diagnostic tools.

Combined Throat And Nose Swab

Combined Throat And Nose Swab

In the accurate and rapid diagnosis of pertussis, nasopharyngeal swabs have become indispensable due to their high sampling efficiency, broad applicability, ease of use, and safety. Especially in critical times of infectious disease control, these swabs provide robust technical support for early screening and epidemiological investigations.

Yousite flocked nasal brushes stand out with their superior performance and reliable quality, offering efficient and convenient solutions for the healthcare industry. As technology advances, nasopharyngeal test sticks are expected to play a greater role in the detection of other respiratory diseases.

If you are looking for high-quality flocked swabs, Yousite is your best choice.

Mrsa Nasal Swab

Mrsa Nasal Swab

Posted on by

The way to prevent MRSA transmission in hospitals is to screen high-risk patients admitted to the hospital for MRSA, and then isolate those who screen positive.

Methicillin-resistant Staphylococcus aureus (MRSA) is increasingly rampant, and its infection spreads almost all over the world. Together with AIDS and hepatitis B, it has become the three most difficult infectious diseases in the world. How to prevent and controlling MRSA has become a problem that cannot be ignored.

The long-term treatment of MRSA infection, in addition to the direct economic burden on patients, will also generate some indirect costs, such as isolation, disinfection and so on. Strict detection and control measures should be proposed in response to the prevalence of MRSA. MRSA screening is an important part of this.

MRSA is one of the major pathogens of nosocomial infections. The epidemiology and microbiology of MRSA vary around the world and provide an important basis for developing strategies to prevent and control its infection.

MRSA can be classified into hospital-associated, community-acquired, community-associated, and livestock-associated. Community-associated and livestock-associated MRSA are relatively recent, and this article focuses on hospital-associated MRSA.

At present, the optimal screening strategy and expansion scope of MRSA colonized or infected patients are still controversial.

Which patients should be screened for MRSA?

Flu Test Throat Swab China Factory And Manufacturers

A throat-flocked swab for influenza is more accurate. Throat swab testing for influenza is very fast, economical, and simple.

Proponents of universal screening claim that this strategy significantly increases the detection rate of MRSA carriers. Others argue that universal screening protocols are too expensive and that patients with risk factors for MRSA colonization should be tested.

Universal screening may make it easier to identify MRSA carriers and those at high risk of infection.

The Scottish Health Technology Assessment study showed that universal screening as part of a programme to control MRSA is potentially effective and cost-effective.

The MRSA screening clinical risk assessment questionnaire in this study included the following questions:

(1) Does the patient have a history of MRSA colonization or infection?

(2) Where has the patient been other than his own home?

(3) Did the patient have wounds or ulcers, and whether there were prostheses or medical implants in the body before admission?

But then a large prospective study including nearly 70,000 patients showed that screening all patients admitted to “high-risk” specialties (intensive care, orthopedics, nephrology, vascular surgery, cardiothoracic surgery), based on the above Targeted screening of other hospital admissions for the three questions, combined with clinical risk assessment, can achieve similar detection rates and significantly reduce costs.

 Although high in-hospital prevalence is associated with MRSA, key risk factors may vary by country.

Risk factors for MRSA colonization in adults in emergency care settings:

(1) Hospitalized in the past 24 months.

(2)  a long-term care facility or rehabilitation facility within the past 18 months.

(3) an intensive care unit in the past 5 years.

(4) In-hospital transfer.

(5) Received surgical intervention within the past 60 months.

(6) Indwelling urinary catheter.

(7) Antibiotics used in the past 12 months.

(8) There is skin damage.

(9) History of MRSA colonization in the past.

(10) Chronic health comorbidity assessment grade C or D (patient severely restricted in activity due to chronic disease or bedridden).

(11) The presence of terminal disease.

(12) Male.

When should MRSA screening begin?

Eligibility for screening of all other admitted patients should be based on local policy and screening as early as possible. Ensure that appropriate interventions are applied as soon as possible to reduce the risk of infection in the patient and avoid infecting others.

How to screen for MRSA?

Nasal Swab Test

A nasopharyngeal culture is a test that examines a sample of secretions from the uppermost part of the throat, behind the nose,

Standard screening swabs should include (a) nasal and perineal swabs or (b) nasal and pharyngeal swabs. 

(1) The optimal protocol and screening range for MRSA screening are still controversial.

(2) Clinicians must understand and implement local MRSA colonization patient screening and management policies.

(3) Standard screening swabs should include (a) nasal and perineal swabs or (b) nasal and pharyngeal swabs as a minimum screening to identify colonized or infected patients. For whom subsequent Manage to reduce the spread of MRSA, including close contact protection, decolonization, and isolation.

(4) Time boundaries should be provided for the acquisition of screening results so that effective interventions minimize the risk of infection and transmission to others.

To sum up, it is suggested that in relatively underdeveloped medical institutions, we may directly carry out decolonization interventions for high-risk groups, and perhaps do not need to do the screening. Because the cost of screening is indeed very high, many hospitals do not have rapid screening facilities. technology. Direct decolonization or direct isolation of high-risk groups may result in intervention for some uncolonized high-risk patients, but it may be more cost-effective than full screening.

 

Chinese Medical Swab Suppliers Manufacturers

Chinese Medical Swab Suppliers Manufacturers

Posted on by

Cell medical (Dongguan) Co., Ltd. Flocking sampling Medical Swab manufacturers can be customized according to customer needs.

Cell medical (Dongguan) Co., Ltd. is a comprehensive high-tech medical consumables company and an OEM factory for flocking swabs. We support customized production, our swab OEM factory produces flocking swabs, throat swabs, nasal swabs, oral swabs, sponge swabs, virus sampling tubes, virus transport media, and sample preservation solutions. Our GMP factory was built in 2016, and the factory has an ISO13485 quality management system, CE, FDA and other qualifications.

ABOUT VTM kits and swabs manufacturer

ABOUT VTM kits and swabs manufacturer

  We support ODM and OEM

  Our factory has a number of automated production lines. We support customized production, OEM, ODM, etc., and jointly develop and design products with customers. Willing to challenge all kinds of harsh swabs.

  Customization of flocking swabs, customization of VTM kits, customization of a virus transfer medium, customization of virus collection and transfer kits, customization of disposable virus sampling tubes, customization of nasopharyngeal swabs, customization of oropharyngeal swabs, etc.

      Welcome to the factory for consultation, we will serve customers wholeheartedly and develop high-quality flocked Medical swabs together with customers.

 

 

 

Features of our flocked swabs

Covid Swab Test flocked swab

Covid Swab Test flocked swab

  1. The flocked swab is made of nylon fibre flocking technology, and the sample collection and release amount is as high as 95%;

  2. Nylon nails are fixed vertically, the elution speed is faster and the efficiency is higher;

  3. Single independent packaging to avoid pollution.

  4. Strict process conditions, DNase free and amplifiable human DNA.

  5. The tube body is transparent and the inspection material is visible.

  6. The unique patented shell design ensures air circulation in the shell and prevents the detection material from becoming mouldy due to the humidity of the sealing environment. It avoids magazine pollution in the outside air and affects the detection quality.

Advantages of our flocked swabs

  1. Especially designed for virus sampling and DNA micro-samples. Especially for trace samples such as sweat, semen, blood, dandruff, oral cells, etc., it has excellent collection performance.

  2. It can quickly adsorb trace samples and release a high aging rate.

        3. Flocked swabs become ideal for PCR work.

  4. The front end is more precise and is suitable for cell extraction in the nails of victims or suspects.

  5. The unique flocked swab breakpoint design is beneficial to the automatic extraction workstation for sample extraction.

  6. Packaged in a clear plastic tube to avoid biological contamination.

Viral Transport Medium Tube Suppliers

Viral Transport Medium Tube Suppliers

Posted on by

PCR Swab Test detection disposable virus sampling tube inactivated non-inactivated production supplier

Viral Transport Medium Tube:  virus transport tube, which consists of a virus storage tube and virus storage solution.

Virus transport tube: specially designed in combination with subsequent PCR instruments for the rapid detection of viral diseases.

 The virus preservation solution ( Viral Transport Medium) is a protective liquid medium added to the virus sampling tube to protect the samples after nasopharyngeal swab sampling.

Includes inactivated viral transport media and non-inactivated viral transport media.

Usually, during nucleic acid detection, nucleic acid PCR cannot be performed directly at the sample collection site.

If the samples collected by flocked swabs need to be transferred for inspection, VTM needs to be added.

Virus detection is different from conventional biochemical detection.

The virus itself is a simple-structured microorganism that must be parasitic in living cells.

After sampling, the virus leaves the host cell. Its protein shell and nucleic acid are quickly degraded in the sampling tube.

So it is impossible to determine whether the initially collected sample contains the virus during nucleic acid detection, which may easily lead to false negatives.

Viral Transport Medium Tube Suppliers

Viral Transport Medium Tube Suppliers

　　The non-inactivated virus preservation solution contains a variety of solution components that are beneficial to the cultivation of virus cells. Which can ensure the integrity of the virus and help increase the survival time and stability of the virus.

　　A virus is a non-cellular life form that consists of nucleic acid molecules and proteins or only proteins, an individual is a small and simple structure that contains only one nucleic acid (DNA or RNA). Without a cellular structure, viruses cannot replicate themselves, but instead, insert genes into host cells and use the latter’s replication system to replicate new viruses. Common infectious diseases are usually RNA viruses, such as influenza virus, HIV virus, H1N1 virus, etc.

After the collection of virus samples,  stored and transported in a virus preservation solution to maintain the activity of virus samples and prolong the survival time of viruses in the samples.

Viral Transport Medium with Flocked Swab

Viral Transport Medium with Flocked Swab

　　In addition, we also provide inactivated virus sampling tubes, which can make the sample infective. Thus improving the safety of sample storage and transportation. The product is supplied in bulk liquid medium for further processing, such as into smaller sample tubes.

Inactivated or non-inactivated virus preservation solution. Its basic function is to protect the integrity of virus or viral nucleic acid and ensure the accuracy of viral nucleic acid detection.

Both VTMs have their own advantages.

CellMedical’s virus sampling tubes with a flocked swab to help users collect samples, and there are a variety of swab models to choose from.

　　NOTE: For large-scale nucleic acid testing in non-risk areas during a pandemic, high-volume viral transport media that can hold 5 or 10 swab samples can greatly reduce testing costs.

Characteristics of non-inactivated virus transport media

　　VTM can safely transfer viruses, chlamydia and mycoplasma for further research and analysis.

　　The special formulation ensures optimal sample recovery and the added antibiotic inhibits the contaminating growth of bacteria and fungi.

　　Bovine serum albumin (BSA) acts as a protein stabilizer, but the protein coat of the virus forms a protective film. Making it difficult to decompose and ensuring the integrity of the virus.

　　Hanks’ buffer (HBSS) creates a neutral environment, which helps increase the survival time of the virus and the stability of infection.

　　This product is also equipped with flocked swabs to help users collect samples, and there are a variety of swab models to choose from.

2-3 ML UTM Tube Np Flocked Nasopharyngeal Instruction Swab Test

2-3 ML UTM Tube Np Flocked Nasopharyngeal Instruction Swab Test

Applications of Viral Transport Medium Tubes

　　Non-inactivated virus preservation solution: for the preservation and transportation of clinical influenza, avian influenza (such as H7N9). Hand, foot and mouth disease, measles and other viral specimens and mycoplasma, urea. Chlamydia and other living specimens.

　　It is suitable for a variety of applications including classical cell culture methods, and diagnostic tests. And molecular biology techniques (including PCR)

Viral Transport Medium Tube Suppliers Manufacturer

Cell medical (Dongguan) Co., Ltd China Vtm Swab Supplier And Manufacturers

VTM Kit, Viral Transport Media manufacturers, suppliers & exporters in china

The CellMedical production site covers an area of ​​15,000 square meters, with its own injection moulding production workshop. A thousand-level purification workshop, and more than ten automatic packaging production lines.

We support custom production, OEM and so on, and develop products with customers.

Virus sampling tubes and saliva collection devices can ensure the safety and stability of samples during transport;

Swabs using jet dense nylon fibre technology correspond to soft or brush texture swabs according to different analysis items, which have reached the maximum collection volume.

Disposable injection-moulded swab rods with breaking points and flocking technology. To enhance the adsorption/release of specimens and improves the sensitivity of the analysis.

No sample entrapment, heralding faster and fewer sample transfers.

CellMedical’s sampling flocked swab: made of plastic rod + ABS. Which is harmless to microorganisms and can maximize the collection and release of specimens.

The main products of Cell Medical (Dongguan) Co., Ltd. are disposable virus sampling tubes, virus sampling tube sets, disposable sampling flocking swabs, nasal swabs, throat swabs and other disposable medical equipment consumables.

Sold well at home and abroad. And the superior product quality and high-quality service attitude have won praise from many customers.

What Is Specimen Collection ?

What Is Specimen Collection ?

Posted on by

The surge of covid-19 has seriously affected our life and production.

With the efforts of most scientific researchers, the test of this virus came out.

Collection methods of common virological test specimens.

Nasal Swab Virus Sampling Kits

Nasal Swab Virus Sampling Kits

1. Draw 5 ml of blood for serological examination without anticoagulation

2. Extract cerebrospinal fluid through an aseptic procedure, place it in a sterile test tube, and immediately send it for examination in an ice bath.

3. Take a cervical or vaginal swab to take the secretions from the lesion site.

If there is no lesion site, clean the mucus of the cervical mouth, stick the swab about 1 cm into the cervix and hold it for more than 5 seconds to take it out. And put the swab in the transport solution on the ice at 4 °C. 

4. Fecal specimens Take 2g~4g of stool specimens in a sterile container, add 8ml~10ml of transport fluid, and send them for inspection immediately.

5. Gargle solution: The patient can get it by gagling with sterile normal saline several times. After mixing the same amount with the transport solution, send it for inspection immediately.

6. Throat swab: Use a tongue depressor to fully expose the throat to avoid saliva contamination. Use a swabened moist with normal saline to collect specimens on the surface of the throat, and place them in transport fluid for inspection.

7. Nasopharyngeal swab: Take nasopharyngeal secretions for bacterial culture and drug sensitivity test.

7. Urethral swabs and urine specimens.  The tester inserts the urethral swab 4 cm into the urethra and rotates it gently 2 to 3 times to obtain more epithelial cells. Then take it out and send it to the transport fluid for inspection.

The classification of new coronavirus nucleic acid samples includes nasopharyngeal swabs, oropharyngeal swabs and anal swabs. Different specimens use different methods for specimen collection.

What is a Specimen Collection Kit?

 Viral Transport Kit: for collecting, handling, and transporting specimens suspected of VIRUS.

Generally equipped with a disposable flocking swab. From the appearance point of view, the flocking swab is white and soft. Using this soft brush during the sampling process will make the user feel no foreign body, and it is suitable for sampling in different parts. people.

Virus sampling tube: When collecting samples, routine samples could not be detected by PCR immediately. It is generally necessary to transport the swab sample with the specimen. The virus itself dissolves rapidly in vitro, affecting subsequent experiments. For transport, viral transport medium must be added.

What is the Specimen Collection Kit used for?

How Accurate Is The Nasal Swab

 The nasopharyngeal swabbing is generally the preferred method of specimen collection for COVID-19 testing.

1. Disposable virus sampling tube is used for monitoring and sampling infectious pathogenic microorganisms in the disease control part and clinical part. Suitable for sampling influenza virus (common influenza, highly pathogenic avian influenza, H1N1 influenza virus, etc.). Hand, foot and mouth disease virus and other types of viruses.

It can also be used for sampling other respiratory diseases such as Mycoplasma and Chlamydia. COVID-19.

2. For transporting nasopharyngeal swab samples or site-specific scheduled samples from the sampling point to a testing laboratory for extraction and testing by polymerase chain reaction.

3. For the preservation of nasopharyngeal swab samples or samples arranged at specific sites for necessary cell culture.

Swab in specimen collection

1. Swabs with polyester fibre, polyester or rayon head and plastic or aluminium handle: suitable for the collection of virological test specimens. The collection of virological test specimens should not use swabs with wooden handles.
2. Cotton swabs: It is suitable for the collection of vaginal, cervical and urethral specimens for the mycoplasma test. It is not suitable for the collection of bacteria (especially fastidious bacteria) and chlamydia test specimens.
3. Polyester swabs and nylon swabs: suitable for a sampling of virus and bacterial specimens.
4. Flocked swab: It is made of nylon fiber through proprietary spray technology, and is suitable for respiratory virus sampling and fungal culture specimen sampling.
5. Calcium alginate swab: suitable for the collection of nasopharyngeal swabs for Chlamydia and Bordetella pertussis.

However, it is not suitable for the sampling of lipid-enveloped virus and cell culture. It is not suitable for the sampling of Neisseria gonorrhoeae and Ureaplasma urealyticum.

How to Use Specimen Collection Kit

How to Use Specimen Collection Kit

Posted on by

What is a Specimen Collection Kit?

Sample collection kits provide all the components needed to secure samples and send them to laboratories for diagnostic. Environmental sampling and research purposes. Timely collection and processing of samples are critical to ensure accurate results and prevent analytical errors.

Specimen Collection Kit Contains:

  • Individually packaged sterile specimen collection flocked swab;
  • 10ml virus sampling tube, containing 3ml Viral Transport Media;
  • Sterilization packaging, Individual in Paper peeled pouch;

The novel coronavirus (2019-nCoV) is an RNA virus. Improper storage or transportation of samples after collection may result in the degradation of part of the nucleic acid and affect the test results;

In addition, samples that have not been inactivated virus can easily lead to indirect infection of operators.

The covid-19 sampling kit independently developed by Cell medical can not only prevent the degradation of viral RNA but also inactivate the virus.

While ensuring the test results, it can reduce the risk of biological infection during the inspection process.

Product description

Viral Transport Medium China

Viral Transport Medium Chin, VTM kits For COVID-19. Cell medical not only produces sampling swabs but also virus sampling tubes.

Analyzing material effectively starts with collecting samples with the right tools, whether it’s collecting samples from the body to aid in medical diagnosis, identifying potentially harmful pathogens from the environment.

Or collecting samples from crime scenes to aid in investigations.

However, it is also important to ensure that contaminants do not come into contact with the sample as it travels to the laboratory. Given the plethora of options available for each of these missions, choosing the right collection and transport vehicle can be overwhelming. This is where a specimen collection kit can prove invaluable.

Features:

1. Safety: Sampling and virus inactivation are carried out simultaneously, which greatly reduces the operator’s infection risk;
2. Stability: keep the sample stable, avoid nucleic acid degradation, and ensure the accuracy of the test results;
3. High efficiency: Inactivated virus samples can be detected in conventional PCR laboratories, and the collection tube can be adapted to the Tianlong automated nucleic acid extraction system, which improves the detection efficiency of samples.

Instructions:

What is the Specimen Collection Kit?

As pointed out over, example collection packages have shown very usefully in securing examples for analysis in a large range of clinical, environmental and research study applications.

Nasopharyngeal samples collected by swabbing the upper retronasal vocal cords can supply analysis confirmation for a series of viral as well as bacterial infections, consisting of influenza, COVID-19, enterovirus D68, as well as other respiratory system conditions.
Fecal samples can be gathered by anal or fecal swabs as well as can aid clinicians detect a series of intestinal microbial infections.
A vaginal swab example can help determine the visibility of Group B Streptococcus or Streptococcus agalactiae, a type of microorganisms found in the digestive system and also birth canals of a quarter of pregnant ladies, to name a few conditions.
Food sampling is not just important for recognizing the potential presence of foodborne pathogens but is a crucial step in maintaining conformity with FDA food security requirements.

How to choose the right specimen collection kit?

It is necessary to discover a sampling collection set created for your particular end-use. This consists of using the flocked swab that best matches your sampling collection needs. As an example, foam swabs might use elution characteristics best matched for environmental and also food sampling, while polyester or crowded swabs may supply a combination of collection attributes and also person comfort far better fit for medical usage.

Nonetheless, it is not constantly necessary to utilize a sample collection package created for usage with the example cpu’s very own brand name of the fluid transfer system. Validation examinations can aid clinicians, food mill and also other samplers, and also labs recognize precise and also affordable sample collection kits. Verifying shipping systems from several suppliers has come to be a common practice in research laboratories around the globe, not just to ensure sustainable supply, but likewise to compare item top quality and expense.

Nasopharyngeal Swab Pcr Test

Nasopharyngeal Swab Pcr Test

Posted on by

Nasopharyngeal Swab Pcr Test

There are two broad categories of COVID-19 tests: viral diagnostic tests (which detect an active COVID-19 infection) and antibody tests (which detect past COVID-19 infections).

The PCR swab test is a qualitative oropharyngeal or nasopharyngeal collection used to detect the novel coronavirus, the virus that causes COVID-19. This test helps determine if you have been exposed to the virus. The COVID-19 PCR test is a molecular test that detects the genetic material of the virus.

The current more accurate test for COVID-19 is to use RT-PCR to assess the presence of SAR-CoV-2 RNA in collected samples. If anything, the subject was almost certainly infected with the virus.

On this page you will learn about:

What are the diagnostic tests for the COVID-19 virus?

How does Nasopharyngeal Swab detect coronavirus?

What types of nasal swab sampling are available?

Do you feel any discomfort?

Is the nasal swab COVID test the best test?

Mouth swab vs Nasal swab

 

What are the diagnostic tests for the COVID-19 virus?

With the development of testing for COVID-19, there are now four main forms of diagnostic testing for the virus:

Nasal Swab Test: A test involving a shallow nasal flocked swab.

Cell medical flcoekd swab

Cell medical flcoekd swab

Nasopharyngeal test: A test that involves a deeper nasal swab using PCR technology.

Saliva Test: A test involving a saliva sample and PCR technology.

Oral swab test: An innovation in COVID-19 testing that allows anyone to test quickly, non-invasively and easily. Use PCR technology.

The COVID nasal swab test, also known as the nasal swab test, is a medical test used to detect viruses in the nose that can cause respiratory infections.

 

How does Nasopharyngeal Swab detect coronavirus?

Nasopharyngeal testing collects a sample from the back wall of the nasopharynx.

(1) Measure the distance from the nostril to the base of the ear with a swab and mark it with your finger.

(2) Let the patient’s head relax naturally, put the swab against the nostril wall and slowly rotate it into the patient’s first nostril to the nose and palate, and then slowly take it out while wiping. With the same swab, leave the swab in the nose for 15-30 seconds, then gently swirl 3 times. Wipe the other nostril in the same way;

(3) Put the flocked swab into the virus delivery medium, break the swab rod, and place it completely in the tube.

(4) Tighten the cap of the tube, make a mark, put it in a plastic bag and seal it

(5) If it is necessary to collect from both nostrils, a swab should be used separately.

(6) Store at 4°C (short-term storage).

What types of nasal swab sampling are available?

There are three types of sampling swabs used in the nasal cavity, namely nasopharyngeal swabs, nasal cavity swabs, and middle turbinate swabs.

nose structure

nose structure

Nasopharyngeal testing collects a sample from the back wall of the nasopharynx.

Sampling from the middle turbinate location is not as uncomfortable as the nasopharynx.

Anterior nasal swab/nasal swab:

Taking a sample in the anterior position of the nose does not cause discomfort and can be used by people with narrow nasal passages.
The sampling difficulty is low, and the patient can easily complete the anterior nose sampling by himself.

Although nasopharyngeal swabs, nasal swabs and turbinate swabs have different sampling methods, they can all be used to collect samples and then use PCR results to determine whether the owner of the sample has been infected with the new coronary pneumonia virus.

Do you feel any discomfort? Does it hurt!

Nasopharyngeal Swab Sample

Nasopharyngeal Swab Sample

Nasal swabs and throat swabs are the two most widely used sampling methods. Just use a flocked swab to gently wipe the throat mucosa or nasal mucosa, and it can be completed in 1 to 2 seconds, which is generally not uncomfortable. However, for some more sensitive people, irritating retching, nausea or choking may occur. At this time, it is best to use a tissue to cover the mouth and nose and try to hold it back to avoid vomit or sputum. create pollution.

How does nucleic acid testing relieve the discomfort of sampling?

Both nasopharyngeal swab sampling and oropharyngeal swab sampling will make the sampled person feel slightly uncomfortable, which can be relieved after a short rest. Therefore, during the sampling process, the sampled person should cooperate with the sampling personnel as much as possible, relax as much as possible, and do not move the head excessively to avoid scratching the mucous membrane with the sampling swab.

Is the nasal swab COVID test the best test?

What are the current testing methods for COVID-19?

There are two types of virus detection:

  • Nucleic acid amplification test (NAAT) (PCR test) and antigen test.
  • Antibody tests (also called serology tests) can show whether you have been infected in the past.

Mouth Swab vs Nasal Swab

HOW TO USE

HOW TO USE

Nasal swabs generally enter from the nasal cavity and take the secretions at the back of the nasopharynx, while pharyngeal swabs enter from the mouth to the throat and take local secretions for inspection, that is, the two enter in different ways.

Learn more about Mouth Swab and Nasal Swab. Click here

How to Swab For Covid Test

How to Swab For Covid Test

Posted on by

How to Swab For Covid Test

Since the outbreak of novel coronavirus pneumonia, we must have experienced nucleic acid testing. Covid swab test Nucleic acid detection plays a very important role in the process of infection diagnosis of COVID-19. It can not only find asymptomatic patients in the incubation period as much as possible but also greatly reduce the risk of infection.

Nucleic acid detection is so important. Next, Dr Li will take you to have an in-depth understanding of the relevant principles of nucleic acid detection, the difference between mixed collection and single collection of nucleic acid detection, and the matters needing attention in nucleic acid detection, to help you better protect yourself while popularizing knowledge.

To understand nucleic acid detection, we must understand the detection principle. Let’s take a look at its detection principle first.

The doctor is testing the patient's nasopharynx swab

The doctor is testing the patient’s nasopharynx swab

What is the principle of nucleic acid detection?

Nucleic acid, the genetic factor of the virus, is a macromolecular chain composed of four nucleotides. Different molecules represent different nucleotides and form a long chain. Nucleic acid detection is through the detection of nucleic acid in the chain, and this segment of nucleic acid is COVID-19 specific, other viruses do not.

Pcr test nasal swab and an antigen test difference for covid 19

Pcr test nasal swab and an antigen test difference for covid 19

The substance detected by the nucleic acid is the nucleic acid of the virus. At present, the detection technology is mainly through PCR (polymerase chain reaction) technology to detect the nucleic acid of the virus. During the detection, the nucleic acid chain of COVID-19 was used as the detection target, and the target gene sequence was amplified by PCR Test, which was combined with a fluorescent labelled probe added in the test reagent to produce a fluorescence signal.

The three forms of nucleic acid detection have their advantages.

Nasal swab test

This test method is to insert the test swab vertically into the nostril. And gently rotate the swab, stay in the nasal cavity for about 15 seconds, to test.

Flocked Tip Swab Nylon Sterile Nasal Swab Stick

Flocked Tip Swab Nylon Sterile Nasal Swab Stick

Compared with throat swabs, nasal swab testing is more accurate for inexperienced testing personnel. And the risk of exposure is lower. However, it is not suitable for some patients with nasal allergies, high blood pressure and people who take anticoagulation and antiplatelet for a long time.

Throat swab test

At present, the most widely used detection method is also a form that is often used by everyone. During the sampling process, the patient opened his mouth and made an “ah” sound, and the testing personnel used a sterilized cotton swab to gently and quickly wipe the pharyngeal lateral wall and posterior pharyngeal wall of the subject many times.

COVID-19 Testing:PCR swab test,antibody test, and antigen test difference

COVID-19 Testing: Throat swab test

Throat swab testing: Often used in the testing process because it is more convenient and fast to collect, and it is more acceptable to the public, but the risk of exposure is also greater.

Anal swab test

This test method is a method of inserting a test swab into the anus and taking a sample at the fold of the anus or taking a sample at 2 to 3 cm for a new coronavirus test.

Many patients reject anal swab testing, but anal swabs can improve the accuracy of testing for new coronavirus infections to a certain extent. Some patients indeed have negative throat swabs, but positive ones are detected by anal swabs. In some patients, the anal swab test was still positive after the other two tests turned negative.

Anal swab

Anal swab

Why do multiple nucleic acid tests need to be performed?

Multiple nucleic acid tests are necessary for epidemic prevention and control.
A negative nucleic acid test does not mean that the tested person is not at risk of infection. Any detection method has the possibility of errors, especially in high-risk areas. To ensure the accuracy of the inspection results and better prevent and control the spread of the epidemic, multiple rounds of inspections must be carried out. There are also the following reasons for taking multiple rounds of detection:

After virus infection, the human body has a certain value-added period. When testing, if the virus in the body does not reach a certain concentration, we may not detect the virus.

When the specimen was collected, due to the different sampling methods, no virus cells were collected. False-negative specimens can also lead to inaccurate collection results.

Errors in the transportation process and storage of samples for inspection will also affect the results of nucleic acid testing.

Therefore, for risk areas and special populations, multiple rounds of nucleic acid testing must be carried out to more accurately and effectively detect the virus source, so as to better and more accurately prevent and control and identify infected people, and cut off the source of the virus. No matter what kind of inspection process, attention must be paid.

How does a Covid Mouth Swab Test work?

How does a Covid Mouth Swab Test work?

Posted on by

How does a Covid Mouth Swab Test work?

I went for a swab test for the new coronavirus the day before yesterday, and the result came out yesterday and it was negative. Some friends asked me, is the throat swab test painful? How to do it? What are the types of COVID-19 tests? What COVID-19 test is more accurate? Today, Dr Lee came to give everyone a popular science.

You can use a variety of tests to determine whether you have COVID-19. Some tests are collected by mouth swabs, and some are collected by nasal swabs or saliva. In the experiment, an oral flocked swab was used to collect samples from the oral cavity for oral inspection. This is different from a saliva test, which spits out saliva into a small container.

On this page, you will learn:

  1. What is a mouth swab? Painful? 
  2. How to do a mouth swab COVID-19 test
  3. What are the types of COVID-19 tests?
  4. What COVID-19 test is more accurate?

What is a mouth swab? Painful?

The COVID-19 test is the most important way to diagnose the new coronavirus. Nucleic acid is the genetic material RNA of the new coronavirus. The nucleic acid test is to check a certain segment of RNA. If it is positive, it means that you are infected with the new coronavirus.
According to different sampling sites, nucleic acid detection can be divided into many types, such as throat swabs, anal swabs, tracheal secretions, alveolar lavage fluid, and so on.
Among them, throat swabs are the most commonly used, and oropharyngeal or nasopharyngeal secretions are taken for laboratory tests.

Oropharyngeal swab, the inspection process is very fast, no more than 10 seconds, only needs to open the mouth, and the staff uses a cotton swab to take a sample in the oropharynx.

Covid Mouth Swab Test work

Covid Mouth Swab Test work

When sampling, there will be a slight pain, and when the throat is stimulated, there will be a feeling of vomiting.

But the feeling is not strong, and it will be fine for a while.

According to British colleagues, the nasopharyngeal swab is more uncomfortable, and the pain will be greater because the nasopharyngeal swab needs to be completely pricked into the nose. Learn more about nasal swabs Please click here

How to interpret the results of the Oral swab test?

Nucleic acid(COVID-19) testing usually produces results within 24 hours. If you check today, the results will be known the next day. The results are nothing more than two cases, negative or positive.

Does negative mean there is no infection?

It is not 100% certain, because nucleic acid testing has a certain probability of false negatives. For example, in the early stage of the disease, the virus content is very low, and it may not be detected, or the sampling is not taken properly, and the sensitivity of the detection reagents, operation Whether it is standardized or not, etc., are affected by many factors.

How to do a mouth swab COVID-19 test

How to use mouth swab

How to use mouth swab

There are different ways to do a COVID-19 mouth swab:

  • 1. The patient needs to sit with his head back, open the mouth, and then remove the nasal cavity and the secretions on the oral surface.
  • 2. The collector uses a special tongue depressor to fix the patient’s tongue, and then cross the throat with the collecting tool, and the tonsils directly to the position where the specimen is taken.
  • 3. After repeated wiping of the collection table, mucosal cells can be directly extracted.
  • 4. Take out the collected throat swabs. Be careful not to touch the oral mucosa, tongue and saliva secreted by the oral cavity during this process to prevent inaccurate test results.
  • 5. Put the extracted throat swab into a special device and transport it to the laboratory for examination.

You may need to take specific steps before the test so that the results are as accurate as possible. If you need to book an appointment, ask if there’s anything you should avoid on the day of your test. Some types of tests that use saliva require that you don’t eat, drink, smoke, brush your teeth, or chew gum 30 minutes before the test (FDA, 2020).

What are the types of COVID-19 tests?

In the UK, when diagnosing COVID-19, there are usually two main types of tests:

Molecular biology tests, such as PCR (polymerase chain reaction), are used to find viral genetic material.

Look for the antigen detection of the virus shell.

Either test can be done with a nasal swab or a mouth swab. Saliva can also be used for PCR detection (FDA, 2021a). Although saliva and oral swab tests may sound the same thing, they are actually slightly different. The saliva test requires you to spit into the tube, while the oral swab test is to wipe a sample in the mouth with a cotton swab.

Nasal mucosal secretions follow the same rules, but the difference is that you or a health care professional collect the sample from your nose instead of your mouth.

Another type of test is antibody testing (also called serological testing). These two data can’t tell you whether you are infected now but can tell you whether you have been infected before or if you have been vaccinated before. Antibody testing usually requires a blood sample.

What COVID-19 test is more accurate?

How to interpret the swab test results

Nucleic acid testing usually produces results within 24 hours. If you check today, the results will be known the next day. The results are nothing more than two cases, negative or positive.

Does negative mean there is no infection?

It is not 100% certain, because nucleic acid testing has a certain probability of false negatives.

For example, in the early stage of the disease, the virus content is very low, and it may not be detected, or the sampling is not taken properly, and the sensitivity of the detection reagents, operation Whether it is standardized or not, etc., are affected by many factors.

With the continuous optimization of detection methods and the continuous updating of reagents, the sensitivity of detection is now higher, and the probability of false negatives is lower than before.

If it is negative, there is a high probability that it has not been infected with the new coronavirus.

For some high-risk groups, close contacts, and suspected clinically highly suspected cases, one negative may not be enough, and two, three, or even multiple tests may be required.

Notice

Even if you have been tested before, COVID-19 testing is difficult to cope with. But the test should be able to relieve stress and not cause stress.
In any case, the knowledge of COVID detection technology is constantly changing. If you want to know if you want to be tested and how it works, we will help you at any time. Here is some information about oral swab COVID testing and other information to determine whether COVID-19 is COVID-19, you need to know.

About COVID-19 Testing Click to learn more