Tag Archives: nasal swab

China Sterile Flocked Swab

China Sterile Flocked Swab Factory and Manufacturers

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China Sterile Flocked Swab GMP Factory and Manufacturers.

Cell medical (Dongguan) Co., Ltd. specializes in producing flocked swabs. Such as pharyngeal swabs, nasopharyngeal test swabs, oral swabs, nasal swabs etc.

Our flocked swabs are famous for their stable and reliable performance and excellent absorption and elution ability.

Our GMP Factory-We support custom production, OEM

Our GMP Factory-We support custom production, OEM

·OEM / ODM: support

·Certificate: CE / FDA / ISO certification

·GMP factory: Yes

·Supply capacity: 500000-1000000 pieces / month

·Size: 150mm

Sterile Flocked Swab flocked swabs manufacturers

Sterile Flocked Swab flocked swabs manufacturers

The DNA extraction flocked swab produced by our company is made by nylon fiber flocked technology. The front end is coated with nylon short fiber fixed vertically. There is no absorption hole in the whole collection swab collection area, and the DNA cells will not disperse and remain in the fibers, which is conducive to faster and more efficient elution.

Independent sterilization packaging.

The benefits of flocked swabs for COVID-19 viral collection.

1. Sample collection process: The unique structure of the front end of the flocking swab can greatly increase the number of samples collected.

2. Sample dissolution process: The brush-like layer structure can release almost all collected samples. There are more advantages for the collection of trace DNA.

3. According to different analysis items, the corresponding soft or brush texture swabs have reached the maximum collection.

4. Disposable sterile sampling swab rod with breaking point.Learn more

5. Flocked swab technology improves the adsorption/release of samples and the sensitivity of the analysis.

6. The front flocked swab sampling is more precise and suitable for extracting more cells from the nasopharynx.

7. Packed in a transparent plastic tube to avoid biological pollution.

In short, the upright nylon fibre is like a soft brush, which can collect more cell samples. The capillary action between nylon fibers enhances the load of aqueous samples, and the samples are concentrated on the surface of the swab, which is easier to elute. Nylon flocking swab can absorb and release more samples.

Cell medical (Dongguan) Co., Ltd.  –China Sterile Flocked Swab Factory and Manufacturers.

Email:flockedswabs@gmail.com

 

 

China Sterile Sampling Swab

China Sterile Sampling Swab factory and manufacturers

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China Disposable Sterile Sampling Swab factory and manufacturers

Guangdong Dongguan city Changan town comprehensive high-tech biotechnology company -Cell medical (Dongguan) Co., Ltd. , Nissan large amount of flocking sampling swab, Disposable Sterile Sampling Swab help COVID-19 prevention and control.

Our GMP factory _Cell medical (Dongguan) Co., Ltd.

Our GMP factory _Cell medical (Dongguan) Co., Ltd.

Controlled environment Labor uniform strict control, Ensure DNA& RNA free product

Controlled environment Labor uniform strict control, Ensure DNA& RNA free product

 

Brief description

China Sterile Sampling Swab floced swab

China Sterile Sampling Swab floced swab

Aseptic environment sampling swabs include aseptic environment sampling swabs, disposable sampling swabs, aseptic sampling swabs, disposable aseptic environment sampling swabs and disposable aseptic sampling swabs.

sterilization and packaging method

1. Sterilize the product with ethylene oxide

2. Adopted international paper plastic packaging convenient for sterilization.

3. Independent packaging, easy to use.

special storage conditions and methods

Stored in a cool, dry and clean environment with no corrosive gas at 2 ℃ ~ 30 ℃ and relative humidity of 40% ~ 90%.

Nasal swab: for medical institutions to collect virus and DNA samples infected in patients’ nasal cavity. Virus sampling swab: used for nose and throat sampling of respiratory and intestinal viruses such as influenza, swine influenza, avian influenza, hand, foot and mouth.

Product composition: ⑴ nylon flocked swab. That is, sterile sampling swab (for sampling, the release is up to more than 90%).

 Product features:

① International paper plastic packaging convenient for sterilization.

② γ Ray sterilization to ensure sterility.

③ Each set of independent packing in the large packing box is convenient to use.

④Researchers can select different culture media (bacteria, viruses, mycoplasma, chlamydia) for different types of specimens.

China Sterile Sampling Swab (Cell medical ) advantages:

1. Collection swab features: the collection system adopts nylon flocked swab, which is non-toxic to microorganisms and can maximize the collection and release of samples.

2. A large number of clinical experiments show that compared with ordinary sterile cotton swabs, nylon flocked swabs have a better effect on the collection and transportation of clinical microbial samples.

Especially for those samples that cannot be submitted for examination in time and placed for too long.

Advantages of flocked swabs:

① The unique jet nylon fiber implantation technology increases the collection and release of specimens.

② The total length of the swab is 15cm, and the plastic rod has a unique breakable design.

③ Flocking swabs can collect more target analytes.

④ There is no residual specimen, so the specimen processing process can be accelerated.

⑤ Swabs are sterilized and packaged separately. Aseptic swabs packaged separately.

Swab test

Swab test | Disposable virus sampling swab

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Swab test | Disposable virus sampling swab

Disposable virus sampling swab, I believe you are no stranger in the past two years. Because most of the detection tools used for nucleic acid test are disposable sampling swabs. Usually, we see most nasal swabs and pharyngeal swabs. But disposable virus swabs are not only useful for nucleic acid testing. What else can a disposable sampling swab do? Let’s get to know.

What can a disposable virus swab be used for?

In addition to nucleic acid detection, scientists can also use disposable sampling swabs for microbial collection. They are usually used for virus detection and research in hospitals or laboratories. Researchers use disposable sampling swabs to detect biological samples in natural cavities of human or animals. Such as throat, nose, mouth, vagina and so on. It is necessary to collect oral epidermal cells and nasal virus samples with a sampling swab, store the cells and samples in the sampling tube and transfer them to the laboratory for examination.

Oropharyngeal swab sampling

Oropharyngeal swab sampling

Operation (use) method of disposable sampling swab:

Take pharyngeal swab as an example:

① Tear open the packaging bag of the disposable sampling swab and take out the disposable sampling swab from the bag;

Note: please do not let the disposable sampling swab touch the place outside the throat to avoid pollution.

② Put a disposable sampling swab into the mouth and quickly wipe the palatal arch and throat (or lesion) on both sides

③ Take out the swab, put it into the disposable virus sampling tube, break the disposable sampling swab at the broken place and discard the tail;

④ Tighten the sampling tube, put the virus sampling tube into the biosafety bag and submit it for inspection in time.

Note: please do not shake the virus sampling tube excessively to avoid dilution and loss of samples. After sampling, do not touch other objects with a disposable sampling swab.

How to carry out COVID-19  nasal swab test?

The doctor shall wear protective clothing, mask, gloves and mask to let the patient take a proper position.

Gently insert the flocked sampling swab into the nose, rotate it for three times, take it out and put it into the sample tube with protective solution, and screw the cover. Then label it, write the date, and send it to the laboratory for nucleic acid test of nasopharyngeal swab.

 

What is a COVID-19 swab test?

Swab test, namely nucleic acid test. The substance test by nucleic acid is the nucleic acid of virus. Nucleic acid detection is to collect the presence of viruses in the respiratory tract, blood or feces of patients, and determine whether they are infected by COVID-19. Therefore, once detected as nucleic acid “positive”, it can prove that there is a virus in the patient’s body.

SARS-CoV-2 nucleic acid detection process.

The usual sample types include throat swabs, nasal swabs, sputum, bronchoalveolar lavage fluid, alveolar lavage fluid and so on.

The sampling personnel shall conduct PCR detection as soon as possible after obtaining patient samples.

After the testing institution receives the sample, the laboratory personnel shall extract nucleic acid from the sample. And the nucleic acid extraction reagent shall use the nucleic acid extraction kit specified in the approved product manual.

Disposable virus sampling swab material.

At present, because of its stable and reliable performance and excellent absorption and elution capacity, nylon flocked swabs are widely used in COVID-19 sampling.

Swab test result

Swab testing for novel coronavirus pneumonia usually takes 4-6 hours to produce results, while rapid examination takes 2-3 hours. However, the reagents used in each hospital are different, so the time of results is also different.

COVID-19 positive results：Maybe infected.After 24 hours of self isolation, the positive patients need to conduct swab test again.

If the two results are positive, the next step is to improve CRP, blood routine, chest CT and other tests to determine whether COVID-19.

When COVID-19 nucleic acid test is negative once, it should be combined with the clinical symptoms and epidemiological contact history of patients. Because a COVID-19 nucleic acid swab test is negative, it can not completely exclude the infection of COVID-19.

 

Comparison of advantages of various testing methods of COVID-19

Comparison of advantages of various testing methods of COVID-19

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advantages of various testing methods

The detection methods of COVID-19 mainly include nucleic acid detection, antibody detection and antigen detection. Due to the low detection rate of antigen, the SARS-CoV-2 detection mainly focuses on antibody and nucleic acid detection. Nucleic acid detection has the characteristics of early diagnosis, high sensitivity and specificity; However, antibody detection is convenient and rapid, which can be used as a supplementary means of nucleic acid diagnosis. Due to the limitations of “false positive” and “false negative” antibody detection, it is not suitable for general population screening such as returning to work,  and school, nor for epidemiological investigation in low epidemic areas.

NAT Detection process

The detection procedure needs to go through five steps: sampling, sample retention, preservation, nucleic acid extraction and computer detection.

First, collect samples according to the instructions of the kit. The sample types include pharyngeal swab, nasal swab, sputum, bronchial lavage fluid, alveolar lavage fluid, etc.

Because RNA is easy to degrade, flocked swabs without RNase and storage tubes without RNase are used when collecting samples.

After obtaining the patient’s sample, it needs to be tested as soon as possible. If it cannot be tested immediately, it needs to be packaged at low temperature and sent to a special testing institution for testing.

After receiving the sample, the testing institution shall extract the nucleic acid from the sample. The nucleic acid extraction reagent shall use the nucleic acid extraction kit specified in the approved product manual.

Finally, fluorescence PCR nucleic acid detection, that is, machine detection. It takes 70-80 minutes to amplify the extract by fluorescence PCR.

Sample collection, oropharyngeal swab or nasopharyngeal swab

Sample collection, oropharyngeal swab or nasopharyngeal swab

NAT Detection process Nucleic Acid Testing

NAT Detection process Nucleic Acid Testing

Antibody detection

After the virus invades the human body, the human body will produce corresponding specific antibodies for defense.

According to different molecular structures and antigen specificity, scientists divide immunoglobulins into five categories: IgG, IgA, IgM, IgD and IgE.

After the antigen enters the human body for the first time, plasma cells secrete antibodies after a certain incubation period. IgM first appeared, but the antibody had short maintenance time, low concentration and low affinity. It lasted for several days to several weeks in the blood. It was a diagnostic index of acute infection; When IgM is about to disappear, the content of IgG reaches the peak. IgG appeared late, but its concentration was high, its maintenance time was long and its affinity was high. The positive serum IgG indicates the middle and late stage of infection or previous infection.  But the antibody content increases rapidly in the short term, which may be several times to dozens of times higher than the original antibody content. It is mainly IgG, which lasts a long time in the body, and IgM rarely increases.

In this epidemic, the researchers studied patients with covid-19 and found that after the virus invades the human body, IgM antibody takes about 5-7 days to produce and IgG antibody takes 10-15 days to produce.

Antibody detection kits-advantages of various testing methods

Antibody detection kits-advantages of various testing methods

Comparison of advantages and disadvantages of two different detection methods

Compared with the serological detection of antibodies, Nucleic Acid Testing can detect patients in the window stage.

Early detection of infected persons is the “gold standard” for COVID-19 detection, but it requires higher detection equipment or platform.

The high sensitivity RT-PCR instrument is expensive, and the laboratory cleanliness and operator requirements are higher. In addition, nucleic acid detection takes a long time. Considering the sample transportation and sample backlog, the results can be reported as soon as 24 hours.

Compared with nucleic acid detection, blood samples detected by antibody serology are easier to obtain. If the RNA of the virus detected by nucleic acid is the direct evidence of the existence of the virus, the antibody detection is the antibody stimulated in the patient’s blood, which is indirect evidence and has a suggestive effect on the clinic.

When nucleic acid detection is negative, adding IgM and IgG antibody detection can make up for the shortcoming that nucleic acid detection is easy to cause missed diagnosis.

About us

Cell medical (Dongguan) Co., Ltd., a professional VTM kits and swabs manufacturer, has many years of experience in medical application molding and flocked treatment heads and swabs.

Our flocked swabs are famous for their stable and reliable performance and excellent absorption and elution ability.Certificate:FDA,CE,EU,Free Sale,Export license based on (GMP).

We produce flocked swabs, VTM kits, Virus transport medium, with multiple automatic production lines.We support custom production, OEM and so on, and develop products with customers.

  • E-mail：flockedswabs@gmail.com

     

    Sample collection swab :How much do you know about nucleic acid testing

    Sample collection swab :How much do you know about nucleic acid testing

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    Sample collection swab:How much do you know about nucleic acid testing

    The spread of the covid-19  is continuing worldwide. Although the global scientific and medical circles are making every effort to fight the epidemic, it is difficult to predict how the epidemic will develop in the future, and its impact on social development has appeared in many aspects.

    Currently, COVID-19 cases are over 220 million.

    Currently, COVID-19 cases are over 220 million.

    In order to fully control covid-19, the general screening of local areas shall be carried out if necessary.

    After identifying the detection object, how to detect it?

    1、 What specimen to choose?

    According to the recommendations of the American infectious diseases association, the following specimens were used:

    The sensitivity of simple oropharyngeal swab may not be enough, so it is relatively easy to miss diagnosis.

    The sensitivity of alveolar lavage fluid is the highest, but it is obviously not suitable for universal screening.

    Nasopharynx swabs and other operations should also be standardized.

    Improper operation may make the quality of collected samples not high, thus increasing the risk of missed diagnosis.

    2、 Select the time of detection

    It is very important for COVID-19 to measure RNA and choose the right time. One analysis included 7 studies, including 2 unpublished reports, to evaluate the detection efficiency of RT-PCR at different time points after exposure to virus :

    On the day of exposure to the virus, the possibility of detecting viral RNA is almost zero;

    On the fifth day after exposure, that is, the first day after infection, the detection probability was 62%

    About the 8th day after exposure, i.e. the 4th day after infection, the probability of detection was 80%

    On the 21st day after exposure, i.e. the 17th day after infection, the detection probability was 34%

    In conclusion, exposure to COVID-19 may require multiple tests to avoid missed diagnosis. However, it is not recommended to repeat the test within 24 hours of the previous test; The interval between two tests shall be at least 24 hours.

    After 28 days of exposure to the virus, if the infection has not been diagnosed, it is not necessary to continue the detection; At this time, it is almost certain that it is not infected.

    Nucleic acid detection throat swab  sampling process

    The COVID-19 nucleic acid was novel coronavirus, which was collected from sputum or lower respiratory tract by real-time fluorescent RT-PCR. If positive, the new coronavirus could be diagnosed. This is the basis for the diagnosis of new type of pneumonia. In addition to detecting the nucleic acid of the virus, it can also detect whether the virus in the specimen is highly homologous with New Coronavirus. If so, it can be diagnosed as New Coronavirus pneumonia. The virus is highly infectious and has the characteristics of human to human transmission, but the virus is sensitive to temperature and sunlight and ultraviolet rays.

    Sample collection, nasopharyngeal swab sampling

    Sample collection, nasopharyngeal swab sampling

    Sample collection, Oropharyngeal swab sampling

    Sample collection, Oropharyngeal swab sampling

    The flocked swab is the best raw material for sampling swabs.

     

     

    reference

    1，Infectious Diseases Society of America Guidelines on the Diagnosis of COVID-19, updated December 23, 2020. https://www.idsociety.org/practice-guideline/covid-19-guideline-diagnostics/ (Accessed on January 14, 2021).

    2，Kucirka LM, Lauer SA, Laeyendecker O, et al. Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction-Based SARS-CoV-2 Tests by Time Since Exposure. Ann Intern Med 2020; 173:262.

     

    COVID-19 sampling tools

    COVID-19 sampling tools help SARS-CoV-2 precise diagnosis!

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    COVID-19 sampling tools help SARS-CoV-2 precise diagnosis!

    Cell medical (Dongguan) Co.,Ltd. monthly production of millions of virus sampling swabs and VTM kits helps epidemic prevention and control.

    What are the covid-19 sampling tools？

    Flocked sampling Swabs,VTM Kits,Viral Transport Medium,VIRUS Collection & Transport Kits,Saliva collection kit,Disposable virus sampling tube,Op swabs,Np swabs,etc.

    Why use sampling tools？

    At present, the global New Coronavirus epidemic has reached a critical stage. The most reliable means of rapid diagnosis is still positive for nucleic acid detection. There has been a great breakthrough in the diagnosis of COVID-19, but clinicians, especially the laboratory doctors, still face the following serious problems:

    1. Safety of specimens

    The majority of “angels in white”, especially the laboratory doctors, are always facing the risk of virus infection.

    Although there are various protective equipment, the risk of infection will increase if we can’t ensure the safety of specimens. Therefore, it is very important to ensure virus inactivation and the safety of collected samples.

    2. False negative test results

    The existence of false negative puzzles the clinic and affects the accuracy of diagnosis. The biggest problem is sample collection and preservation. The New Coronavirus infection prevention and control program (Fifth Edition) has been published to collect nasal swabs, throat swabs, sputum, lower respiratory tract secretions, blood and feces. The incorrect way of collecting and storing samples will lead to the degradation of viral RNA and directly lead to the false negative test results.

    Cell medical (Dongguan) Co., Ltd. provides the perfect solution for sampling tools.

    √. Cell medical provides samples of swabs collected from various viral types including New Coronavirus (covid-19) and provides a perfect solution.

    √ .It can quickly inactivate viruses including New Coronavirus, influenza A virus and many other viruses.

    √ .preservation solution: preserve RNA to prevent degradation.Disposable virus sampling tube.

    √ .safety guarantee: vertical design, sampling and preservation in one step to reduce personnel exposure.

    Sampling steps of new virus collection tube

    1) The collection personnel shall be qualified through biosafety training and have corresponding experimental skills. Requirements for protective packaging of sampling personnel: N95 and above protective masks, goggles, one-piece protective clothing, double-layer latex gloves, waterproof boot covers, etc. in case of direct contact with the specimen, the protective equipment shall be replaced in time.

    2) Sample type: pharyngeal swab and nasal swab.

    nasal swab_COVID-19 sampling tools

    nasal swab_COVID-19 sampling tools

    Pharyngeal swab collection method: wipe bilateral pharyngeal tonsils and posterior pharyngeal wall with a plastic rod swab with polypropylene fiber head

    Nasal swab collection method: gently insert a plastic rod swab with polypropylene fiber head into the nasopalatine part of the nasal canal, stay for a moment, and then slowly rotate and exit. Take another plastic rod swab with polypropylene fiber head and collect the other nostril wall in the same way.

    3) Specimen preservation: immerse the swab head into the tube containing virus preservation solution, discard the handle along the folding point of the sampling swab, and tighten the tube cover.

    Notes

    The tube containing virus preservation solution another name isvirus sampling tube.

    Virus preservation solution is also called virus transport medium.VTM.

     

     

    COVID-19 Testing: Method of collecting virus swab samples

    COVID-19 Testing: Method of collecting virus swab samples

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    COVID-19 Testing: virus swab

    According to New Coronavirus’s pneumonia diagnosis and treatment plan (trial version fourth), to diagnose suspected cases of New Coronavirus pneumonia, we need one of the following etiological evidence:

    1. Respiratory tract specimens or blood samples were detected by real-time fluorescence RT-PCR for New Coronavirus nucleic acid positive.

    2. Novel coronavirus is highly homologous to respiratory tract specimens or blood samples.

    Therefore, novel coronavirus pneumonia is an indispensable part of the specimen collection. So, where to collect specimens? How to collect specimens? How can medical staff protect themselves during collection? What should I do after collection?

    How to obtain a virus swab specimen?

    We all know that the collection method of virus swab specimen is basically to use the swab to sample the infected place or part of the virus, and then put it into the virus sampling tube containing preservation solution without touching other places, so as to conduct virus detection later.

    Specimen type:

    1. Upper respiratory tract specimens: including pharyngeal swab, nasal swab, nasopharyngeal extract, etc.

    2. Lower respiratory tract specimens: including deep expectoration fluid, respiratory tract extract, bronchial lavage fluid, alveolar lavage fluid and lung tissue biopsy specimens.

    3. Blood samples: try to collect anticoagulants in the acute stage within 7 days after onset. The collection volume is 5 ml, preferably fasting blood.

    4. Serum samples: try to collect double serum in acute stage and recovery stage.

    5. Conjunctival specimens: conjunctival swab specimens shall be collected for cases with ocular infection symptoms.

    6. Stool samples: Patients with diarrhea symptoms need to collect stool samples.

    COVID-19 Testing: Common virus swab sampling methods

    Methods of throat swab collection

    Inform the patient of the purpose of examination, collection method and collection time. It is best to collect specimens before using antibiotics.

    Objective: To study the clinical effect of the method

    Secretions were collected from pharynx or tonsil for bacterial culture or virus isolation to assist in clinical diagnosis and treatment.

    Prepare sampling supplies:

    Disposable sampling swab, virus sampling tube, tongue depressor and biological bag

    Operation method:

    (1) Ask the patient to sit down, tilt his head back, open his mouth and make a “ah ~” sound

    (2) The sampling personnel shall fix the patient’s tongue with a tongue depressor, and use a disposable pharyngeal swab to pass through the root of the tongue to the posterior pharyngeal wall, tonsil recess and lateral wall;

    (3) Repeatedly wipe 3-5 times to collect mucous membrane cells or sputum

    (4) . gently remove the swab to avoid touching the tongue, the suspension, the oral mucosa and saliva

    (5) Put the swab into the virus sampling tube gently and vertically. The sampling personnel shall disconnect the tail of the flocking swab and leave the tail of the swab completely in the tube.Be careful that the swab does not touch the wall of the tube.

    (6) . tighten the cap, mark it, and seal it in the biosafety bag.

    (7) The sampling personnel shall send the samples to the laboratory for testing in time. If the sampling personnel cannot send the samples for inspection in time, they shall store them at low temperature

    Methods: nasal swabs were collected

    Nasopharyngeal swab_COVID-19 Testing: Method of collecting virus swab samples

    Nasopharyngeal swab_COVID-19 Testing: Method of collecting virus swab samples

    (1) Ask the patient to sit down with his head slightly back and remove the secretion from the front nostril first;

    (2)measure the distance from nostril to ear base with swab and mark with finger

    (3)gently insert the swab into the nostril until it is marked or stopped when there is obstruction. Let the swab stay in the nose for 15-30 seconds, and then rotate it gently three times.

    (4) slowly pull out the nasal swab and quickly put it into the virus sampling tube. Then break the swab, leave its tail and place it completely in the tube.

    (5) tighten the cap, mark it, and seal it in the biosafety bag.

    (6) If we need to collect from both nostrils, we should use a swab.

    (7) It should be sent to the laboratory for testing in time. If it can not be sent for inspection in time, it should be stored at low temperature.

    Generally speaking, COVID-19 testing: the main methods of collecting virus swabs are nasopharyngeal sampling and oropharyngeal sampling.

     

    Is COVID-19 pneumonia more infectious than SARS?

    The effectiveness of infectious disease transmission depends on its basic regeneration index. Novel coronavirus pneumonia is more infectious than SARS at present, with a basic regeneration index of SARS higher than that of SARS.

    The novel coronavirus pneumonia is a new disease, and the population is generally immune. Everyone is susceptible and susceptible to infection. The incubation period of COVID-19 also has the ability to transmit, and it has longer infection time. The novel coronavirus pneumonia novel coronavirus pneumonia is also typical of the clinical symptoms, and asymptomatic infections are also contagious, so the infection of new crown pneumonia is higher than SARS.

    About us

    Cell medical (Dongguan) Co., Ltd.  is a swabs manufacturer. We produce and sell virus sampling related products. Such as virus sampling flocked swabs, VTM kits and virus transport media, and have multiple automatic production lines.  We support customized production, OEM, etc., and develop products with customers.

     

    Nasal swab for flu

    Nasal swab for flu,Rapid antigen nasal or throat swab

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    Nasal swab for flu_Rapid antigen (nasal or throat swab) test

    Influenza is common in winter and spring. The clinical manifestations are mainly systemic poisoning symptoms such as high fever, fatigue, headache, cough and systemic muscle pain, while the respiratory symptoms are mild.

    Influenza viruses are prone to mutation, infectious, susceptible to population and high incidence rate. They have caused many outbreaks in the world, and are important public health issues worldwide.

    Why should we detect and prevent influenza?

    According to the World Health Organization (WHO), seasonal influenza can cause 3-5 million severe cases and 290000-650000 deaths worldwide every year.

    The researchers believe that children under the age of 5 are at high risk of severe influenza, but children under the age of 2 are at the highest risk, and infants under 6 months have the highest hospitalization rate and mortality.

    Pregnant women, infants, the elderly, patients with chronic basic diseases and other high-risk groups have a higher risk of serious diseases and death after suffering from influenza.

    Nasal swab for flu : common influenza test method

    Nasopharyngeal sample collection

    Nasopharyngeal sample collection

    Influenza is an acute inflammation of the respiratory tract caused by the patient’s infection with influenza virus. The patient can have a series of symptoms such as cough, expectoration, fever, sore throat, stuffy nose, runny nose and general fatigue. In case of influenza, we should conduct relevant examinations in time to further clarify the diagnosis, including the following tests:

    First, blood routine test, patients with influenza can promote the increase of lymphocytes. If combined with bacterial infection, there can be the increase of leukocytes and so on.

    Second, scientists can culture throat swabs of influenza viruses. In throat swab culture, researchers can detect the related virus.

    Third, influenza patients can do second-generation sequencing, including sputum second-generation sequencing, which can determine the type of virus infected.

    Fourth, influenza patients can do the detection of respiratory pathogens to further clarify the pathogens of infection.

    At present, the two most common influenza tests are rapid antigen diagnostic test  and influenza virus cell culture test. Both tests rely on Nasopharyngeal swabs, pharyngeal swabs, etc. for virus sampling. The most commonly used sampling swab is nylon flocking swab.

    Nasal swab for flu:Application

    It is suitable for the detection and sampling of COVID-19, influenza virus , hand foot mouth disease virus, COVID-19, measles rubella and other types of viruses.

    About nasal swab sampling

    Why use flocked nylon swabs?

    flocked swabs_Cell medical (Dongguan) Co., Ltd.

    flocked swabs_Cell medical (Dongguan) Co., Ltd.

    Flocked nylon swab: excellent sample collection / release ability, release rate > 90%.

    Conventional fiber swab: the sample is intercepted by the gap in the fiber mass. That is, the sample is penetrated, diluted and intercepted in the fiber.  Acquisition is slow and release is slower.

    The sampling time of flocked swab is 3-5 seconds, while that of traditional swab is 15-120 seconds or even longer.

    This caused pressure on the staff during the diagnosis process. Only by extracting samples faster can we complete the collection and analysis more efficiently.

    Precautions for patients with nasopharyngeal swab:

    ① Please do not take antibiotics a few days before making nasal swabs;

    ② Do not use disinfectant mouthwash or smear the focus a few hours before nasal swab.

    ③ Do not eat, smoke or drink a few hours before doing nose swab.

    Precautions for Sampler:

    ① . the sampler shall stand on the side of the patient for sampling.

    ② The patient is required to pull down the mask to expose only his nostrils. In case of sneezing reflex, the patient can cover it with elbows or paper towels.

    If the sampler is not directly in front of the patient, the exposure risk will be lower.

    ③ If the patient’s turbinate is hypertrophic, the nasal tract is narrow, and the insertion of the nasal swab feels resistance. Try to change one side of the nasal cavity or directly change to oropharyngeal swab collection.

    ④ Those with nasal allergy symptoms are easy to induce sneezing. It is recommended to take oropharyngeal swab samples.

    ⑤ Remember to wear a protective mask / screen. For individuals who are highly suspected or basically diagnosed, or who have severe cough and hiccup, they should put on protective clothing.

    ⑥ After sampling, replace gloves, disinfect hands, and spray disinfectant where patients have touched.

    Finally, we should pay attention to nasal swab for flu in special times. Remember to wear masks and personal hygiene when going out. Once you find the virus, please isolate it to avoid re transmission.

     

    Nasopharyngeal swab collection kits with virus transport media

    Nasopharyngeal swab collection kits with virus transport media

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    Nasopharyngeal swab collection kits with virus transport media

    Cell medical (Dongguan) Co., Ltd.

    Nasopharyngeal swab collection kits are used to collect nasopharyngeal swab samples,which is a high quality and reasonable kit for testing COVID-19 .

    The collection kit contains virus transport media, which can collect, transport and store viruses at room temperature The ability of these kits to detect samples by RT-PCR has been verified. The virus and related samples shall be stored and transported within 48 hours under cold storage (2 ~ 8 ℃).

    Characteristics of nasopharyngeal swabs and virus transport tubes.

    The sterile nasopharyngeal swab we provide has a flocked tip swab with a breakpoint located about 80-90 mm from the tip, which is compatible with the catheter provided. The virus sampling tube cap design is very effective in containing media and preventing sample leakage.And these sampling tubes are pre labeled, and each tube has a unique bar code identifier.

    Nasopharyngeal swab collection kits with virus transport media

    Nasopharyngeal swab collection kits with virus transport media

    Product specification

    A) 1pcs flocked swab ,1 pc 10ml tube with 3ml medium refilled；
    B) 2pcs flocked swab ,1 pc 10ml tube with 3ml medium refilled；
    C) 1pcs flocked swab ,1 pc 5ml tube with 2ml medium refilled；
    D) 2pcs flocked swab ,1 pc 5ml tube with 2ml medium refilled；

    certification

    • CE IVD registration Kit；

    • iso13484 certified manufacturer, registered with FDA；

     

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    Foam Swab VTM Kit

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    how to collect nasopharyngeal swab

    how to collect nasopharyngeal swab?

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    how to collect nasopharyngeal swab?

    After several times of nucleic acid sampling and testing, citizens wondered: why do some people require nasopharynx swabs and some people can collect oropharyngeal swabs?  Today, experts from cell medical will explain to you.

    What is a sampling swab?

    At present, except for special diseases, COVID-19’s nasopharyngeal swabs and oropharyngeal swabs are the most common ways of collecting.

    Studies have shown that nasopharyngeal swabs have higher detection rate of COVID-19 nucleic acids than oropharyngeal swabs. Because the nasopharyngeal cavity is relatively closed and the virus is easier to accumulate. However, whether it is oropharyngeal swab or nasopharyngeal swab, the key is that the collection action must be standardized, in place and meet the standards. As long as the acquisition is standardized, both methods can achieve the expected detection purpose.

    How to collect a nasopharyngeal swab?

    nasal swab collection method_How to collect a nasopharyngeal swab？

    nasal swab collection method_How to collect a nasopharyngeal swab？

    1. The patient’s head tilts back (about 70 degrees) and persists. 2. Use a swab to estimate the interval from the ear root to the nostril. 3. Insert from the nostril pen to the face. The deepening interval should be at least half of the length from the earlobe to the tip of the nose. Reach the posterior nasopharynx after encountering resistance, stay for several seconds to absorb secretions (generally 15 ~ 30s), and rotate the swab for 3 ~ 5 times. 4. The swab should be gently rotated and taken out, and the swab head should be immersed in a collection tube containing 2ml lysate or cell preservation solution containing RNase inhibitor. 5. Break the sterile swab rod at the top, discard the tail, tighten the tube cover and close it with sealing film.

    oropharyngeal swab collection

    collection method of oral swabs

    collection method of oral swabs

    1. Ask the patient to gargle with normal saline or clear water first.

    2. Wet the flocked swab in sterile normal saline.

    3. The patient sat down with his head tilted back and his mouth open, accompanied by an “ah” sound.

    4. Fix the tongue with a tongue depressor, and the swab jumps over the root of the tongue to the posterior pharyngeal wall, tonsil recess, lateral wall, etc.

    5. The bilateral pharyngeal tonsils should be swabbed back and forth with moderate force for at least 3 times, and then the posterior pharyngeal wall should be swabbed for at least 3 times, 3 ~ 5 times.

    6. Remove the swab to prevent touching the tongue, pituitary, oral mucosa and saliva.

    7. Immerse the swab head into the preservation solution containing 2 ~ 3ml virus.

    8. Break the sterile swab rod near the top, discard the tail, tighten the tube cover and close it with sealing film.

    After the introduction of our experts, do you have a deeper understanding of sampling swabs? If you want to know more product details and prices, please leave us a message. We will serve you wholeheartedly!

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