93050 Throat sampling swab, ABS rod + nylon fluff head, used for sampling, the release rate is as high as 90%.
The nylon flocked swab is a honeycomb swab best suited for specimen collection. The nylon flocking technology has greatly improved the collection ability and elution ability of a sampling swab. And the flocking swab also marks the latest development of single-use specimen collection equipment. Flocking, which refers to the vertical attachment of long fibres to an adhesive-coated swab shaft, has a distinct advantage when collecting samples.
Features of flocked sampling swabs:
1. Swabs using jet-dense nylon fiber technology.
2. According to different analysis items, there are soft or brush texture swabs, and the collection volume has reached the limit.
3. Disposable sterile injection-moulded swab rod with breakpoint.
4. The flocking swab technology improves the adsorption/release of the specimen and improves the sensitivity of the analysis.
5. No sample retention, indicating faster and less sample transfer.
Used in the medical industry, such as collecting liquid microorganisms.
such as human mouth, nose, throat, cervix, DNA, viruses, bacteria, etc. Medical nylon flocking swabs are the best for sample collection.
As a professional sampling swab manufacturer, many people will ask us why we use flocked sampling swabs? You will know by looking at the comparison below.
Nylon flocked swabs: maximum sample collection/release capacity, release rate >80%
The acquisition is slow, the release is even slower.
The time for flocking swabs to collect samples is 3-5 seconds, while the time for cotton swabs is 15-120 seconds, or even longer, which causes pressure on staff during the diagnosis process. Only faster sample extraction can complete the collection and analysis more efficiently.
The sampling flocking swab is 3 times higher than the traditional wrapping swab to collect and release the sample, and it does not cause damage to the cell sample. It will not cause harm to the human body.
In short, the upright nylon fibers act like a soft brush to collect more cell samples. The capillary action between nylon fibers enhances the loading of aqueous samples, and the samples are concentrated on the surface of the swab for easier elution. Nylon flocked swabs can absorb and release more samples.
The nylon flocked swab is a honeycomb swab best suited for specimen collection. The nylon flocking technology greatly improves the collection and elution capacity of a single sampling swab. Flocked swabs also mark the latest development in single-use specimen collection devices. Flocking, which refers to the vertical attachment of long fibers to an adhesive-coated swab shaft, has a distinct advantage when collecting samples.
Our sterile CellMedical® flockednasopharyngeal swab provides excellent specimen absorption and elution EO sterilized and individually packaged in peel pouches 100% Made in the USA Nylonflocked tip 6″ overall length with 0.7″ long flocked tip.
Nylon Flocked Swab Sample Kit
Why Flocked Swabs Provide Superior Specimen Collection
What is the difference between a nasal (Nose) swab and a throat swab for nucleic acid testing
The sampling method and location are different. The accuracy rates of the nucleic acid test ( PCR Test ) nasal swabs and throat swabs are usually similar, and the main difference lies in the sampling method and sampling site. For nasal swabs, nasopharyngeal swabs (flocking swabs) are mainly used to test the secretions from the inside of the nasal cavity and the surface of the nasal mucosa through the nasal cavity;
Throat swabs: Health care workers collect samples in the mouth with oropharyngeal swabs. Health care workers take throat samples for testing to determine whether a patient has the new coronavirus.
Are both throat swabs and nasal(Nose) swabs required?
Let’s talk about throat swabs first.
The “oral sampling” and “nasal sampling” mentioned above are actually test methods in which medical staff use medical swabs to collect samples from the pharynx in nucleic acid testing (PCR).
It is very important to continue swab testing while the pandemic is still ongoing
Whether entering from the nasal cavity or the mouth, the specimens we need to collect are pharyngeal secretions, including sputum. Compared with the oral route, nasal sampling can provide better safety protection for the sampling person. Because oral sampling requires subjects to open their mouths wide, this increases the risk of virus transmission by droplets. However, if it is collected through the nasal cavity, the environment is relatively stable, and the medical staff who operate it will be safer.
What is the difference between a throat swab and a nasopharyngeal swab, which is more accurate?
The main difference between nasal swabs and throat swabs lies in the location and material of the specimens, which are usually as accurate. The throat swab is in the pharynx, and the nasal swab needs to go into the nasal cavity, not the external nasal cavity. It needs to use a longer swab and slowly rotate it to the deep part of the nasal cavity, so the parts of the material are different. Nasal swabs are special, and the material is relatively soft, which is convenient for reaching the deep nasal cavity through the nasal cavity. The process of taking it may take longer than that of throat swabs.
Compared with nasopharyngeal swabs, oropharyngeal swab sampling is sometimes difficult to meet the normative sampling requirements due to irritating reactions, and the actions of eating, drinking and swallowing will reduce the oropharyngeal to a certain extent. The virus enrichment of 2000 may affect the positive detection rate of oropharyngeal swabs.
Which is better, nasal(Nose) swab or throat swab?
No matter which one is adopted, the key lies in the depth of the collection, whether the collection is in place and the length of contact time with the deep mucosa.
From the personal experience of the testing population, throat swabs will be less irritating and uncomfortable than nasal swabs.
• The operation is relatively simple and less irritating, suitable for large-scale screening.
• The sampling staff will guide the subject to open the mouth, and then use a sterile long cotton swab to gently scrape the subject’s throat to collect secretions from both palatine arches, pharynx, and tonsils.
• The technical requirements are high, the human body does not feel very comfortable, and the accuracy is higher than that of oropharyngeal swabs. For key groups such as isolation points.
• The sampling staff will insert a long sterile cotton swab into the nostril of the subject, and reach the mucous membrane deep in the nasopharyngeal cavity, stay for a few seconds to soak the secretion, and then take it out.
Who is not suitable for nasal swab
What is A Covid-19 NP Swab?
When collecting nasal swab specimens, the flocked swab ( learn more ) will enter the nasal cavity.
f the medical staff operates in a standardized manner, it will reduce the irritation to the mucous membranes.
But because we can’t see the sampling position of the pharynx.
It mainly relies on the hands of medical staff to feel the resistance, so the technical requirements of the operator are very high, and the tools used are also more complicated.
The improper operation will cause certain irritation to the nasal mucosa, so it is not recommended for patients with sinusitis and allergic rhinitis to do nasal swabs to avoid damage to the nasal cavity.
How to overcome the discomfort of throat swab
When collecting throat swab specimens, the oropharyngeal flocked swab will cause certain irritation to the pharynx. For some people with the sensitive pharynx, nausea and vomiting may occur.
Recommended to relax before collecting specimens.
Don’t get too nervous. If you feel discomfort in your throat after collection, you need to eat less spicy, irritating and greasy food, drink more water, eat more vegetables and fruits, and arrange rest appropriately. Generally speaking, it does not take long to return to normal.
Experts said that the study found that the nucleic acid-positive duration of feces or anal swabs of some infected people is longer than that of the upper respiratory tract. Increasing anal swab sampling can improve the detection rate and reduce missed diagnosis; but anal swab sampling is not convenient enough, and currently only for isolation. Points and other key groups to use.
Flocked swabs are widely used in Covid Test bacteriological sample processing, virological cell culture, DFA testing, rapid and direct testing, enzyme immunoassay testing, polymerase chain reaction and molecular diagnostic-based tests, and forensic identification. Both are ideal.
For throat sampling of respiratory viruses such as influenza, swine flu, bird flu, hand, foot and mouth.
Vtm Kits are used for the collection, transportation and storage of influenza, avian influenza, coronavirus and other virus samples for subsequent extraction and PCR amplification.
After samplers collect virus samples, they usually do not conduct PCR testing at the sample collection site in time.
So the collected virus flocking swab samples need to be transported. The virus itself will rapidly decompose in vitro, affecting subsequent detection. During transport, we need to add a virus preservation solution (virus transport medium).
For different detection purposes, we need to use different virus preservation solutions.
At present, it mainly includes inactivated type and non-inactivated type. In order to meet different detection requirements and different laboratory conditions for virus detection, it is very necessary to use different preservation solutions.
Why flocked swabs are more beneficial for micro DNA collection.
1. The top of the traditional cotton swab, may even lead to false-negative results of the test.
2. The top of the flocking swab has a unique structure, which can almost completely extract and separate trace DNA, so the flocking swab has more obvious advantages in collecting trace DNA.
Made of non-inhibitory DNA amplification materials. It has been verified that it can be directly amplified by PCR, eliminating the need for extraction steps.
At present, it mainly includes two types: inactivated and non-inactivated.
Flocked Swab With Vtm Kits Leading China Manufacturer
Inactivated preservation solution:
It can lyse and inactivate the virus in the sample so that the virus loses its infectious activity.
It can effectively prevent the secondary infection of operators.
But it also contains inhibitors, which can protect the viral nucleic acid from degradation.
Therefore, the experimenter can perform follow-up detection by NT-PCR.
Stored at room temperature for a long time, saving the storage and transportation costs of virus samples.
Non-inactivated preservation solution:
The non-inactivated preservation solution of the present invention can maintain the in vitro activity of the virus and the integrity of the antigen and nucleic acid, protect the viral protein shell, and maintain the originality of the virus sample to a large extent.
Not only for nucleic acid extraction and detection (PCR test) but also for virus culture and isolation.
The CellMedical virus sampling tube has a thickened and leak-proof design to ensure that the sample does not leak during transportation. It is a virus transport medium (VTM KITS) that complies with WHO regulations and biosafety regulations.
Cell medical (Dongguan) Co., Ltd. is a Class II medical device manufacturer integrating R&D, production, sales and service.
The company is committed to providing cells, Virus, Microorganism Collection & Storage & Shipping Solutions.
Cell medical (Dongguan) Co., Ltd. was established in 2009, the company is located in Chang’an, Dongguan.
We mainly produce flocked sampling swabs, sponge sampling swabs, preservation transport media, virus sampling tubes and saliva collectors.
VTM Kit, Viral Transport Media manufacturers, suppliers & exporters in china. Vtm SWAB collection kit compatible with its PCR test
To provide cell, virus, microbial sample collection, storage and transportation solutions for life sciences. Forensic identification, CDC, in vitro diagnostics and medical testing.
After more than 10 years of unremitting efforts and the pursuit of excellence in quality,
Today, CellMedical has become a Class II medical device manufacturer integrating R&D, production, sales and service.
Medical care means high technology and rigour. We always adhere to the concept of “survive by quality and develop by innovation”.
The company has an 8,000-square-meter workshop, a 3,500-square-meter GMP workshop and a 600-square-meter laboratory.
The sterile sampling swabs we produce have a high collection volume and release volume, which greatly enhances the accuracy of the inspection;
Well received by domestic and foreign customers. The company has passed ISO 13485 quality system, and flocking and sponge swabs have product registration certificates, CE and FDA certifications.
The COVID-19 outbreak is expected to have a significant impact on the tedious market for swabs and virus transport media owing to the increasing patient demand for infection diagnosis.
Flocked Swab and viral transport media are expected to grow due to intensive testing of COVID-19 in research institutions and laboratories.
Rising research and development activities to produce COVID-19 vaccines are expected to drive market growth during the pandemic.
The rising number of COVID-19 cases in the global population is expected to drive market growth.
The need to develop vaccines and early diagnostics to treat infections is expected to boost the market growth.
Manufacturing of Viral Transport Medium
Virus sampling tubes are medical device products. The virus sampling tube consists of a sampling flocking swab, virus transport medium and outer packaging. Since there is no unified national standard or industry standard, the products of various manufacturers vary greatly.
CellMedical manufactures viral transport media (VTM) following WHO and CDC recommendations, with or without swabs.
Flocked swab+tube with Viral transport medium
1. Sampling swab:
Virus sample collection flocked swab
The specimen collectionswab directly contacts the sampling site, and the material of the sampling head is closely related to the subsequent detection.
Synthetic fibres such as PE synthetic fibers, polyester fibres, polypropylene fibers, and rayon fibres should be used for the manufacture of sampling swab tips.
(1) Natural fibers such as cotton are not recommended
Because the fiber of cotton has strong adsorption of protein, it is not easy to be eluted into the subsequent preservation solution;
(2) Nylon fibers are also not recommended
Because nylon fibers (similar to toothbrush heads) have poor water absorption, the sampling volume is insufficient and the detection rate is affected.
(3) Do not use calcium alginate sponges or wooden stick swabs (including bamboo sticks) for the head of the sampling swab.
Because the broken wooden sticks or bamboo sticks containing calcium alginate and wooden components will also adsorb proteins after being soaked in the preservation solution, and even have an inhibitory effect on the subsequent PCR reaction.
Flocked swabs manufacturers
Features of CellMedical Flocked Swabs:
1. Has extraordinary adsorption energy.
2. It has a release rate of more than 95% for the collected specimens, thus ensuring a high degree of reliability of the results;
3. There is a unique breakable design on the plastic rod, which is convenient for specimen transportation;
4. Sterilized by ethylene oxide or irradiation, individually packaged;
Nasopharyngeal and oropharyngeal swabs. learn more
2. Virus preservation solution (virus transport medium): There are mainly two kinds of virus preservation solutions widely used in the market, one is a virus maintenance solution improved based on the transport medium, and the other is an improved nucleic acid extraction lysate. Preservation solution.
3. Virus sampling tube: The material of the storage tube should be selected carefully. Some data suggest that polypropylene (Polypropylene) is related to the adsorption of nucleic acids, especially at high tension ion concentration, polyethylene plastic (Polyethylene) than polypropylene (Polypropylene) Easier to grab DNA/RNA. In addition, when using breakable swabs, the storage tube should try to choose a container with a height of more than 8 cm to prevent the contents from splashing and contaminating when the swab is broken.
Virus Sampling Tube
4. Water for production of preservation solution: Ultrapure water used for the production of preservation solution should be filtered by an ultrafiltration membrane with a molecular weight of 13,000 to ensure the removal of biologically derived polymer impurities, such as RNase, DNase and endotoxin, and ordinary purification is not recommended. water or distilled water.
About the use of virus sampling tubes
Sampling using virus sampling tubes is mainly divided into oropharyngeal sampling and nasopharyngeal sampling:
1. Oropharyngeal swab sampling:
first press the tongue with a tongue depressor, then insert the head of the sampling swab into the throat to wipe the bilateral pharyngeal tonsils and posterior pharyngeal wall, and wipe the posterior pharyngeal wall with mild force, avoiding touching the tongue department.
measure the distance from the tip of the nose to the earlobe with a swab and mark it with your fingers, insert the sampling swab into the nasal cavity in the direction perpendicular to the nose (face), and the swab should be inserted at least half the length from the earlobe to the tip of the nose. Leave the swab in the nose for 15-30 seconds, swirl gently 3-5 times, and withdraw the swab.
It is not difficult to see from the method of use, whether it is an oropharyngeal swab or a nasopharyngeal swab, sampling is a technical task, which is difficult and easy to contaminate. The quality of the collected samples is directly related to the subsequent testing. If the viral load of the collected samples Low, easy to cause false negatives, difficult to diagnose.
Most of the samples recommended by the kits currently on the market are oropharyngeal swabs or nasopharyngeal swabs and bronchoalveolar lavage fluid. This can greatly reduce the difficulty of the samplers’ work. After all, it is not difficult to collect venous blood samples, and like the detection of hepatitis C RNA, about 5 ml of EDTA anticoagulated blood samples are separated into plasma, and the extracted and purified RNA can fully meet the needs of PCR detection.
Preservation solution features:
Our independent research and development and production, unique cell preservation technology, can be stored at room temperature for more than 3 years after sampling! No need to refrigerate, store and transport at room temperature.
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 control MRSA has become a problem that we cannot ignore.
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.
n response to the prevalence of MRSA, we should propose strict detection and control measures.
MRSA screening is an important part of this.
Medical swabs are one of CellMedical’s specialties. Our goal is to ensure that our swabs give end users what they really need so they can always perform at the highest level.
In this article, we review what MRSA is, why using a nasal swab is the most effective way to test for MRSA, and how to perform a nasal swab test for MRSA.
What is MRSA?
MRSA, known as Methicillin-Resistant Staphylococcus aureus.
A highly drug-resistant strain of bacteria found mainly in people with long-term chronic diseases.
It is naturally resistant to penicillin and cephalosporin antibiotics, and also has varying degrees of resistance to commonly used erythromycin, etimicin, ofloxacin and other drugs.
Mainly seen in patients with bloodstream infection, lung infection and other site infections.
If the treatment effect is not good after a variety of antibiotic anti-infection treatment, it is necessary to consider whether there is mrsa infection. This bacterium is only effective against antibiotics such as vancomycin, teicoplanin, and linezolid.
MRSA is contagious through person-to-person contact and when a contaminated person touches an object or surface and leaves behind germs that can spread.
About 126,000 people are hospitalized and 19,000 die from the bacteria each year.
MRSA Nasal Swab
A nationwide cross-sectional study of MRSA screening in more than 10,000 patients showed that screening sites included the nose, throat, underarm, perineum, and wound or implant sites. Nasal swabs identified only 66% of MRSA carriers, and further swab testing could increase the detection rate.
Nasal and perineal swabs were identified in 82% of patients, with the axilla being the least useful site for carrier identification (8% detection rate).
Standard screening methods should include at least two swabs (nasal swab plus perineal or pharyngeal swab).
According to the American Society for Microbiology, nasal swabs have a higher detection rate of MRSA than traditional swabs. Flocked swabs provide better sample collection because their brush-like tips release more target cells and retain more liquid sample than foam swabs.
Our flocked-Swab sterile swabs are designed for the collection and transport of clinically significant bacteria.
With molded breakpoints, sampling is fast, safe and convenient.
Sterile Medical Specimen Collection Sterile Nylon Flocked Nasopharyngeal Nasal Swab
How to use MRSA Swab?
Once a sampling swab and transfer medium, such as CellMedical’s flocked-Swab media transfer system, has been selected, testers should wash their hands and wear clean gloves.
Measure about 2 cm with a swab and mark with your finger.
Insert a cotton swab about 2 cm (about 3/4 inch) into one nostril.
Insert the swab into the nostril perpendicular to the nose (face), rotate the swab against the anterior nasal mucosa for 3 seconds, then gently rotate 3 times. .
Using the same swab, repeat for the other nostril.
Place the swab back into the virus delivery medium.
Place the end of the swab firmly so that the tip of the swab is in contact with the wet swab.
Tighten the cap of the tube, mark it well, and put it in a plastic bag and seal it.
Still have questions about MRSA swabs or other CellMedical single-use medical products? Contact us today!
A throat swab refers to the use of a sterile medical long flocked swab to dip a small number of secretions from the pharynx of the subject.
And then carry out the detection of respiratory viruses, bacteria and other pathogenic microorganisms.
The collection site of the throat swab is the pharynx and tonsils of the subject, and precautions should be taken when collecting.
Swab Specimen Collection details are as follows:
Swab Specimen Collection
1. Drinking water before the oropharyngeal test strip will dilute the virus attached to the pharynx, especially drinking hot water will inhibit the activity of the virus.
In order to improve the accuracy of the nucleic acid detection of throat swabs, required 15-30 minutes before the test. Do not drink water to ensure the high accuracy of throat swab nucleic acid detection;
2. We do not recommend that patients with well-exposed larynx keep hair in order to reduce the occupational exposure risk of the sampler;
3. To prevent vomiting, avoid eating two hours before collecting throat swab specimens;
4. Do not smoke, drink, or chew gum half an hour before sample collection.
In addition, the basic steps of throat swab collection are:
1. Ask the patient to sit down, tilt their head back, open their mouth wide, and take out the surface secretions in the nasal cavity;
2. The sampler fixes the tongue with a tongue depressor, and uses a cotton swab to cross the base of the tongue to the posterior pharyngeal wall and the lateral wall of the tonsillar recess, etc.;
3. Wipe 3-5 times repeatedly to collect mucosal cells;
4. Gently remove the test strip, avoid touching the tongue, uvula, oral mucosa and saliva;
5. Insert the test strip back into the sampling device or a suitable transfer device.
There are various Specimen Collection swabs available on the market.
Compared with traditional wound swabs (although they are also made of synthetic fibres), the amount of samples collected and released by this swab is 3 times higher, and it does not damage the cell samples, which can ensure the survival rate of the cell samples and has no fatty acid residues. Contains substances that inactivate certain viruses and inhibit PCR detection.
Although the positive rate of the new coronavirus RNA test is directly related to the quality of the reagent itself, the quality control of the whole process is more critical, which includes sample collection, transportation, storage, testing and all consumables used for testing. As long as one step is not well controlled, it is difficult to achieve the quality (detection rate) of the reagent itself.
DNA sample collection DNA is collected from an individual (or individuals) using sterile swabs while following appropriate collection techniques.
A DNA test can do this by looking at your DNA to determine the DNA “function” it exposes in your genetic code.
This is the “feature” that some tests can provide for health and life.
The reason for the method information.
Under the license of numerous DNA companies, some will sequence your DNA through your clients to help you understand your family tree, the migration patterns of your ancestors.
Proper DNA sample collection techniques are an essential skill for forensic scientists, crime scene investigators, and medical examiners. We can collect DNA samples from many different sources.
Products found at a criminal crime scene that may not actually involve a true crime may provide DNA evidence.
What is a DNA test and how is it done?
Use your doctor’s genetic sample to test you or be asked to spit in a test tube , or be asked to flocked swab in a tube in your mouth.
If you have frequent dry mouth, you need to do a cheek test. Another could be a lemon bite, the taste of a lemon, and then a bite of the lemon. When to get those drools back. Besides, you can also learn a little more but about DNA testing things!
DNA sample collection method
: generally choose routine: bloodstain, oral test, long sample;
Swab collection method:
Rinse your mouth with water to make sure there is no food residue in your mouth.
Open the DNA storage solution tube. Turn the cap down and the spout up.
Unwrap you and stick your fingers around the probe. It is important not to probe with a profiler of a profiler, as this can affect the profiler results.
Insert a medical DNA swab into the mouth and rub 30 times on the cheeks.
Take a cotton swab and dry the swab in the shade; use the same method to collect three DNA subs.
Exactly how to prevent DNA evidence contamination
When managing all organic evidence for DNA screening, it is imperative for investigators and laboratory staff to wear the correct personal safety equipment, use tidy instruments, and avoid interactions with various other objects to reduce the threat of compromise of any evidence.
Improper storage space, direct exposure to direct sunlight, or simply being comfortable can all cause damage to DNA. To avoid damage, keep accumulated evidence in a dry and cool place and send it to the laboratory immediately.
What is the source of DNA you can wipe?
You can easily wipe down many common DNA sources. These include blood, feces, urine, semen, saliva, hair, teeth, bones, and cells. DNA can also accumulate from selected surfaces and materials.
Where can DNA samples be obtained?
DNA samples can be extracted from drinking glasses, cigarette butts, food with bite marks, bite marks on the skin, etc. You can also wipe down frequently touched surfaces such as computer keyboards, doorknobs, steering wheels, glasses, and countertops.
From last year to now, the epidemic has changed our way of life. Working from home, quarantine, temporary unemployment, children taking early leave or schooling at home, and less seeing family, friends, and colleagues, many changes require us to adapt.
Since late December 2021, the epidemic in Hong Kong has worsened sharply after the Chinese New Year. On February 5, Hong Kong recorded 300 new positive test cases every day, setting an epidemic record; two days later, the number rose to 607; it exceeded 1,000 for the first time on February 9, and exceeded 2,000 on the 14th.
In the face of the pneumonia epidemic of new coronavirus infection, how should we conduct swab tests? How can we do personal protection in our daily life?
The new coronavirus is transmitted through the respiratory tract, and the pharynx is the place where such viruses gather more. Throat swab samples are medical cotton swabs, which are dipped in a small number of secretions from the pharynx of the human body, and the samples taken are throat swab samples. the virus type.
Cell medical (Dongguan) Co., Ltd., a professional VTM kits and swabs manufacturer, disposable swab tubes exporter, has many years of experience in medical application molding and flocking treatment heads and swabs.
When performing a swab test, we make the following recommendations to the sampler:
Residents are encouraged to blow their noses to clear their nasal passages.
If residents cannot perform this task, wipe their nostrils with a flocked swab or tissue.
The Resident’s name, date of birth and time of collection are affixed to the vial.
hand hygiene. Wear a mask, goggles and gloves.
With the head in a neutral position, insert the dry swab from the nostril straight back (not upward) along the base of the nasal passage until it reaches the posterior wall of the nasopharynx—usually halfway from the corner of the nose to the front of the ear (about 4~4~ 6 cm or 1.6-2.5 inches).
Gently swirl the flocked sampling swab and let it sit for a few seconds.
Carefully remove the flocked swab without touching the sides of the nostrils.
Open the virus sampling tube (VTM Tube) and place the swab in the transport medium.
Break the flocked swab along with the swab Breakpoint and close the cap.
Place the sample (viral sampling tube) in the inner bag of the plastic biohazard bag.
Remove gloves for hand hygiene; remove masks for mouth hygiene.
Complete the application form and place it in the small outer bag of the plastic biohazard bag.
Place the entire plastic biohazard bag in a separate clean paper or ziplock bag.
Refrigerated specimens.
shipped to the laboratory.
How can we do personal protection in our daily life?
1. Wash your hands frequently and maintain good respiratory hygiene.
Wash your hands under running water with soap or hand sanitiser.
Practice good respiratory hygiene. Cover your mouth and nose with a tissue or towel when coughing or sneezing, wash your hands after coughing or sneezing, and avoid touching your eyes, nose or mouth with your hands.
2. Enhance physical fitness and immunity, keep the environment clean and ventilated.
Enhance physical fitness and immunity, eat a balanced diet, exercise moderately, work and rest regularly, and avoid excessive fatigue.
Open windows for ventilation no less than 3 times a day, 20 to 30 minutes each time.
3. Minimize activities in crowded places and pay attention to symptoms.
Minimize activities in crowded places and avoid contact with patients with respiratory infections.
If you have respiratory symptoms such as cough, runny nose, and fever, you should isolate and rest at home, and seek medical attention as soon as possible if the fever persists or the symptoms worsen.
4. The role of handwashing in preventing respiratory tract-borne diseases.
Proper handwashing is one of the most effective measures to prevent diarrhea and respiratory infections. The Chinese Center for Disease Control and Prevention, the World Health Organization, and other authorities recommend washing hands with soap and water (water).
5. What should I do if there is no clean water outside the trip and it is inconvenient to wash hands?
You can clean your hands with alcohol-based sanitisers. Coronaviruses are not acid and alkali resistant and are sensitive to organic solvents and disinfectants. 75% alcohol can inactivate viruses, so a certain concentration of alcohol disinfection products can be used as an alternative to soap and running water for handwashing.
Do a good job of COVID-19 nucleic acid swab testing, maintain a healthy lifestyle, and do personal hygiene. During the epidemic, follow the principles of going out less, wearing masks, washing hands frequently, actively isolating, and maintaining personal and home hygiene.
With repeated epidemics, nucleic acid testing and throat swabs seem to have become part of our lives. We also all know where to go for nucleic acid testing, but what actually happens during a swab test? What are the tests for COVID-19? If you haven’t done nucleic acid testing, you may wish to read this article first. This article will popularize five things about Oral Swab testing.
Oral swabs and nasal swabs or saliva. In the experiments, oral flocked swabs were used to collect samples from the oral cavity for the oral examination.
This is different from a saliva test, which spits saliva into a small container.
COVID-19 Test, there are usually two main types of tests:
There are two main methods of nucleic acid detection: acid detection reagents and antibody detection. The first method is usually PCR detection through throat swabs, gene amplification, and then nucleic acid detection.
The antibody test is to choose blood, the method of blood draw to see the results, to observe whether the antibody titer increases.
1. Rinse your mouth with water 30 minutes in advance (no toothpaste, especially breastfed babies need to drink a few mouthfuls of water, and no mouthwash);
2. Mark the envelope with a pen (eg: father, mother or child) and date of collection, name.
3. Hold the CellMedical flocked sampling cotton swab in one hand, put it into the left (right) inner buccal mucosa of the mouth and wipe it repeatedly for 15-20 times (rotate the genetic sampling cotton swab while wiping).
Take out the genetic sampling cotton swab, put it on the envelope or white paper, and dry it in the shade for more than ten minutes until the saliva is completely dry; (the specific location for wiping is the side of the cheek or the inside of the cheek and cheek – for example, the place where the adult pinches the child’s cheek, from the wipe in the mouth)
4. Collect the second cotton swab (the other side) in the same way, and extract three (six in total) genetic sampling cotton swabs from each side;
5. For gene sampling after drying in the shade, we should put the collection cotton swabs in a marked envelope and seal it (please do not use plastic bags or plastic wrap for the sampling cotton swabs)
6. Take the sample to the laboratory as soon as possible for PCR experiments, or you can choose to mail it to the laboratory or hospital.
How to Obtain an Oral Swab Specimen
If you have been in close contact with symptoms of COVID-19 (15 minutes or more in six minutes), you should get tested.
If you have recently been to someone in an area with a positive case, you should do a swab test;
You are a person who recently travelled or travelled for business, you should take the test;
If you and your family members have recently developed suspicious persons such as fever, dry cough, fatigue, sore throat, and decreased sense of smell (taste) during the self-health monitoring process, you should go for a test;
If you have recently held or participated in large-scale, crowded dinners, parties, conferences, training and other large-scale gatherings of people, you should go to the test.
You can talk to your healthcare provider, your local urgent care, or your state or local health department about where to go to get tested (CDC, 2020A).
What is the most reliable test for COVID-19?
You may have seen the rumour circulating that oral swab tests are not as reliable as nasal swabs. But how is this measured?
Expert research has shown that nasal swabs are easier to detect nucleic acid positive, and the sampling time stays longer in the nasopharynx. Larger doses of samples can be obtained, which is the reason for the higher positive rate of nasopharyngeal swabs reported in the literature.
1. Polymerase chain reaction: fluorescence quantitative PCR, which is suitable for a large number of samples and has a low cost;
2. Second-generation gene sequencing: the NGS method, which is more accurate and can read out which generation of nucleotides and viruses the data came from.
For example, the complete data of the nucleotide sequence of the delta virus is available in the database. We compare the resulting virus to the full data, and if we do, it’s a delta virus. There will be subtle differences in the process of virus transmission, even the first and second generations are different, and subtle differences can be found through comparison. Therefore, it is possible to find out who and where the first-generation patient, patient No. 1, came from during the outbreak of this virus in this local community. It is better to use the NGS method to trace the source of the virus.
Both methods have their own advantages and disadvantages, and both can very accurately reflect whether the nucleic acid test is positive or not, and both can achieve the purpose of detection. If we need traceability. We compare the collected viral nucleotides with viral databases in all databases to aid in diagnosis and guide treatment.
Still, the information on testing for the new coronavirus continues to evolve, to the point where you may feel like you need to become a medical professional or even know where to go first. If you’re wondering whether to get tested and how it works, we’re here to help. Here’s what you need to know about COVID-19 testing and other options.
