Tag Archives: Swab Transport Tube

COVID Swab test

COVID Swab test : How can I do a Swab Test

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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.

How can I do a swab test?

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:

  1. 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.
  2. The Resident’s name, date of birth and time of collection are affixed to the vial.
  3. hand hygiene. Wear a mask, goggles and gloves.
  4. 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).
  5. Gently swirl the flocked sampling swab and let it sit for a few seconds.
  6. Carefully remove the flocked swab without touching the sides of the nostrils.
  7. Open the virus sampling tube (VTM Tube) and place the swab in the transport medium.
  8. Break the flocked swab along with the swab Breakpoint and close the cap.
  9. Place the sample (viral sampling tube) in the inner bag of the plastic biohazard bag.
  10. Remove gloves for hand hygiene; remove masks for mouth hygiene.
  11. Complete the application form and place it in the small outer bag of the plastic biohazard bag.
  12. Place the entire plastic biohazard bag in a separate clean paper or ziplock bag.
  13. Refrigerated specimens.
  14. 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.

Flocked Swab Use | Flocked Swabs Provide Superior Specimen Collection

Flocked Swab Use | Flocked Swabs Provide Superior Specimen Collection

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Flocked Swabs Provide Superior Specimen Collection.

1. Flocked swabs provide an optimal sampling.

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Flocked swabs are the best choice for rapid diagnosis and testing, as they allow the better collection of cells or organisms and rapid release of whole cells at the point of collection.

2. Enhance diagnostic sensitivity.

Cell medical flocking technology, Made with nylon short-fibre fleece and medical-grade ABS plastic rods, collects and releases 3 times the number of samples compared to traditional swabs. Creates hundreds of thousands of contacts for superior sample collection and release point. The increased number of target cells (compared to non-flocked swabs) helps improve the sensitivity of rapid diagnostics and tests.

3. Rapid elution.

The flocked swab is fully integrated with the handle to collect and retain more samples. Not only does this provide better sample yield, but it also allows for faster and more complete release of the sample into the liquid medium.
Looking for more? Compare nasopharyngeal and throat swabs here.

4. Proprietary multi-length flocking fibers.

cellmedical isn’t the only medical product supplier offering flocked swabs. But we are a company that makes flocked swabs using multi-length flocked fibers. Unique multi-length flocked fibers create a mesh structure that collects and retains more samples than traditional cotton, polyester or rayon swabs.

Comparing swab tip materials? Check out this guide.

5. It is convenient for loading, unloading and transportation.

Our flocked swabs offer preformed breakpoints so you can easily disconnect the handle before attaching the cap to the vial. Sterile flocked swabs can be used for dry shipping and medium-fill shipping. After sampling, simply replace the tube top for trouble-free transport. Click the image below for a free sample, or contact us for more information.

The Mission of A Virus Test Swab

The Mission of A Virus Test Swab

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The Mission of A Virus Test Swab

From the sampling point to the testing room, then to the temporary storage point of medical waste.

Then to the hazardous waste centre, to the power plant, and finally to the soil.

A swab for nucleic acid detection completed the task and became a piece of pollution-free ash and fill it in the soil.

At present, we are in a critical period of anti-epidemic.

An ordinary hospital has a maximum of 11,220 samples per day at a single sampling point.

The Mission of A Virus Test Swab

The Mission of A Virus Test Swab

At nine o’clock in the morning, at the nucleic acid testing and sampling service point, citizens who were ready to test lined up.

Everyone wears a mask and consciously separates one meter from each other.

At the beginning of the inspection window, the heavily armed nurses washed their hands with an antiseptic solution.

And then removed a flocked swab about 15 cm long from the packaging bag to take a sample before taking the throat swab.

The nurse opened the collector’s mouth wide, and she skillfully inserted the flocked swab into her pharynx.

Then picked up a sampling tube (virus transport medium) with her left hand. And inserted the collection stick into the sampling tube with her right.

With a little force, the tip of the cotton swab breaks enters the sampling tube, seals it. And throws the long stick into the yellow medical waste bin.

As a testing point for ordinary citizens and inpatients, as an ordinary citizen and inpatients, the use of cotton swabs in an ordinary hospital reached 11,220.

Medical waste treatment forms closed-loop management in nucleic acid testing laboratories.

Take the flocked swab, put the swab head into the sampling tube, and paste a barcode similar to “ID card”. And carefully seal it, put it into a transparent sealed box.

And then send it to the transfer cabin of the PCR laboratory of the Department of Infectious Diseases by staff wearing protective clothing.

The PCR laboratory is under negative pressure, and after the virus enters, it cannot come out. After the outbreak, the PCR laboratory strictly abides by the medical waste treatment process, forming closed-loop management of the laboratory.

An hour later, staff in protective suits transported medical waste out of the ward in sealed yellow bags and sealed with “extremely infectious waste”.

Then, the workers send these medical wastes by trolleys to the medical waste temporary storage area at the nucleic acid collection point 100 meters away. For the medical wastes for nucleic acid testing, he transports an average of about 35 kilograms per day.

We need to place the virus sampling tube for 48 hours during the transfer process

Except for professionals, our PCR laboratory does not allow patients and the public to enter here.

To ensure safety, all medical waste from nucleic acid testing collection points, including swab sticks, is kept here for 48 hours.

After our test results come out and are confirmed to be correct, they will be sent to the hazardous waste treatment centre by a medical waste transfer vehicle.

At ten o’clock in the morning, the staff of the hazardous waste centre arrived at the scene. Unload the empty shipping box and load the ship with medical waste that has been sitting for 48 hours.

The sampling flocked swabs used must be incinerated at high temperatures above 1100°C.

There are two buildings, an incineration workshop and a cooking room, in the yard of the Hazardous Waste Center.

The staff in protective suits skillfully unload boxes of medical waste from the transfer vehicle and load boxes of hazardous waste into bucket elevators.

 

Covid-Nucleic-Acid-Test

Covid Nucleic Acid Test Nasopharyngeal Swab Test

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This article
To talk to you in detail
Covid nucleic acid test!

But in the face of the “nucleic acid swab test”
This unfamiliar and familiar word
Do you have many questions?

Image source network

Do you want to do a nucleic acid test when you go back?

Will it be difficult to make an appointment for nucleic acid testing?

How long does it take to get the results of a nucleic acid test at the hospital?

Should I Swab My Throat or Nose for Rapid COVID-19 Tests?

To answer your questions.
Today.
I’m going to tell you.
Those things about nucleic acid testing.

01. What is nucleic acid detection?

At present, nucleic acid detection is the main method for laboratory diagnosis to determine whether a patient is infected with the new coronavirus. It can achieve early detection, early diagnosis, and early treatment. Real-time fluorescent PCR can be used to detect throat swabs, sputum or blood samples. to covid nucleic acid, or detected by viral next-generation gene sequencing.

simply put

Nucleic acid testing is done by

After collecting human secretions

Tested by the instrument

to see if we have the new coronavirus in our body

If so, the test result is positive

On the contrary, if it doesn’t, it’s negative.

02. How to test the COVID swab?

“Sir, oropharyngeal swab, nasopharyngeal swab, and anal swab, which one to choose?”

How do you do a nasopharyngeal swab?

Nasopharyngeal swabs must be performed with the patient sitting upright with the head in an upright position, as this allows for easy visualization and access to the nasal floor perpendicular to the central axis of the patient’s face.

Flocked Tip Swab Nylon Sterile Nasal Swab Stick

Flocked Tip Swab Nylon Sterile Nasal Swab Stick

Insert the swab into the patient’s nose and align it parallel to the nose and the base of the septum. As long as there is no obstruction in the nasal cavity, the swab continues to move in this direction until it reaches the nasopharynx, at which point the tester feels resistance.

Once the swab reaches the nasopharynx, a gentle rotation and two complete 360-degree rotations are recommended to allow secretions from this area to be absorbed.

Once the swab is removed from the patient’s nose, it is immediately inserted into a viral sample containing a viral transport medium. The handle of the swab extending through the opening of the vial was broken off to allow the tube to be closed.

So
Now that there are oropharyngeal swabs and nasopharyngeal swabs
Why add anal swabs?
To answer your questions
Let’s take a look at their respective advantages and disadvantages

The specific operation of the anal swab is as follows:

Soak a flocked swab in saline, insert it 2-3 cm into the anus, wipe from the folds around the anus, or rotate it gently inside the anus, and insert it into a test tube containing saline.

anal swabs

For fecal swab cultures, all of the above requires the use of sterile equipment and placing the swab in a sterile tube.

So
Now that there are oropharyngeal swabs and nasopharyngeal swabs
Why add anal swabs?
To answer your questions.
Let’s take a look at their respective advantages and disadvantages.

Oropharyngeal swab: relatively simple to operate, less irritating, suitable for large-scale screening. Therefore, the nucleic acid test of oropharyngeal swabs is mainly used in the screening of new coronary pneumonia for the epidemic-related population, which is used in the routine nucleic acid test clinic of the First Affiliated Hospital of NTU.

Nasopharyngeal swab: The technical requirements are high, the human body does not feel comfortable, and the accuracy rate is higher than that of the oropharyngeal swab. However, for some asymptomatic or mildly infected people, the condition recovers quickly after infection, and the pharyngeal nucleic acid may not be detected in 3 to 5 days.

Anal swab: high accuracy, reduce missed diagnosis. The study found that the duration of nucleic acid-positive feces or anal swabs of some infected persons is longer than that of the upper respiratory tract. Therefore, anal swab tests will be carried out for key groups such as isolation points or some imported overseas.

In conclusion.
The three swabs have different lengths.
If you have to test an anal swab.
Don’t be shy.
Whatever the swab,
It is a good swab that can accurately identify the virus.

 
Covid Mouth Swab Test

Covid Mouth Swab Test

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Covid Mouth Swab Test

Three key points for oral swab collection!

The oral swab is an all-in-one system that can collect, stabilize, transport and purify DNA from saliva in advance, providing a painless and risk-free new way to collect microbial DNA for disease control and prevention.

Accidentally, it is easy to cause people to be infected with the new coronavirus, and the surface detection is not sensitive, and the operation is easy to lead to standardized operation.

Awareness Check Tool:

Testing equipment for testing equipment, including testing tools for testing equipment, testing equipment for testing equipment, testing equipment for testing equipment, including safety testing equipment.

Virus Sampling Tube & Nasopharyngeal Swab (Inactivated)

Virus Sampling Tube & Nasopharyngeal Swab (Inactivated)

Oropharyngeal sampling points:

1. Sufficient light: Good lighting should be provided for both indoor and outdoor light sources. If necessary, flashlight lighting should also be provided.

2. Full exposure: The three anatomical locations for oropharyngeal swab collection must be completely exposed, and a spatula should be used when exposing bilateral tonsils.

3. Accurate location: The oropharyngeal swab should not touch other parts, such as the tongue, chin, etc., except for the three designated locations, so as not to be stained with saliva and affect the quality of specimen collection.

Covid Mouth Swab Test Pre-harvest preparation

Routine screening:

Work clothes, medical protective face shield, work cap, gloves, isolation gown, goggles (anti-fog) or face shield.

Influenza or suspected cases:

Wear work clothes, medical protective masks, work caps, gloves, isolation gowns or protective clothing, goggles (anti-fog) or protective face shields, and add shoe covers or boot covers if necessary.

Order of protective clothing:

Work caps that do not need to be worn. → Protective masks (Wearable head-mounted type and a tightness test should be performed after wearing them.)→ No shoes protective clothing (Boot covers should be added instead of foot protective clothing.) → Surgical gloves. → Protective screen or goggles.

Employee Registration Protection:

Tooling or isolation gown. → Medical-surgical mask or medical protective face shield. → Disposable work cap.

Protective clothing should be replaced every 4 hours and should be replaced in time if there is moisture or pollution.

Supplies preparation: Throat swab sampling sleeve, tongue depressor, inspection sheet and barcode, transport bag or refrigerator, 75% alcohol, pen.

Nucleic acid collection

1. We asked the examinee to tilt his head slightly, open his mouth.

And lift the upper jaw vertically to expose the posterior pharyngeal wall.

2. Use the front end of a sterile long cotton swab to quickly rub up and down 3-5 times on the bilateral pharyngeal tonsils.

And 3-5 times on the upper and lower sides of the posterior pharyngeal wall.

3. After scraping, open the sampling tube. Insert the front end of the sample vertically into the sampling tube. Insert the sampling tube. Break the sampling tube to expose the outer part of the tube. And tighten the cap.

Place the sampling tube in a biosafety sealed bag, mark the name and other information on the sampling tube, and complete the sampling.

Notice:

1. When sampling with the Covid Mouth Swab Test, it is best not to call “ah”, because once the sampled person is a positive patient, he will shout “ah”, exhale the virus in large quantities, and form aerosols in the sampling area.

When sampling, we advise patients to open their mouths and not yell or take deep breaths.

2. During the sampling process, one person collects and one person disinfects.

When the sampler holds the cotton swab, try to take it as far as possible.

3. A large number of samplers collect oropharyngeal swabs face-to-face with the sampled person.

Therefore, during the sampling process, the breath exhaled by the patient can easily and directly pose a great threat to the medical staff.

To reduce the risk of the sampler, we recommend that healthcare workers sample at a 45-60 degree angle to reduce risk.

End of Swab Test sampling

1. Spray and disinfect the generated medical waste layer by layer, and tie the gooseneck double medicine bag tightly to ensure that the seal is tight, has no damage, and has no leakage. Do not squeeze the contents of the medical waste bag. Annotation generates point information.

2. The order of unprotected items: hand hygiene → take off the protective face shield or goggles → hand hygiene → take off the protective clothing (take off the boot cover together) → hand hygiene, take off gloves, hand hygiene → take off the protective mask and Disposable work cap → hand hygiene.

Nasopharyngeal Swab Sample

Nasopharyngeal Swab Sample

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Nasopharyngeal Swab Sample (Nasal Swab)

The nasopharyngeal swab: A specimen collection tool used to collect cell samples from the nasopharynx (above the throat).

When a patient develops an upper respiratory tract infection, doctors can use the collected samples to detect it, especially when the patient still has a fever.

In the experiment, technicians can detect common sources of infection, including potential pathogens such as the new crown and swine flu.

How is the COVID-19 nasal swab test performed?

how to collect swab sample

how to collect swab sample

Such tests can be uncomfortable for patients, but can quickly identify serious respiratory illnesses, especially those that require isolation or infection prevention measures to protect other patients.

Doctors can use cell cultures to determine the type of current infection. Factory-produced nasopharyngeal swabs cannot use natural substances such as cotton, as they may contain some impurities that will affect the detection.

Nasopharyngeal Swab materials

The nasopharyngeal swabs produced and sold by Cell Medical Company are flocked materials. Learn more about flocked swabs.

flocked swab

flocked swab

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

In general, a caregiver can place a sealed package (safety bag) next to the patient, and the caregiver places a sample container next to the patient, which contains a culture medium that maintains cellular and microbial viability for evaluation. This is the viral transport medium.

Laboratory technicians can detect the source of infection through nasopharyngeal swabs, and they should wear gloves and masks when collecting nasopharyngeal swabs.

Face protection is an effective measure to prevent patients from contracting respiratory diseases.

Nasopharyngeal swab collection

When taking the sample, gently insert the swab into the nose by hand, pushing it all the way to the nasopharynx. Patients often experience discomfort, convulsions, or spasms; for this, they sometimes need to suppress this response by leaning their heads against a wall or pillow.

When the nasopharyngeal swab is fully in, the caregiver can briefly swirl to collect the cell mixture, remove it, and place it in the specimen collection container. (Virus sampling tube)

After the sampler obtains the sample, he should immediately send it to the laboratory for PCR testing.

Waiting or not storing at low temperature may kill microorganisms that may be present in the sample, resulting in false-negative test results.

Patients usually get results within a day or two.

Inspection is capable of scanning for many common microorganisms.

When infectious diseases appear in epidemic areas, nasopharyngeal swabs and other microorganisms can be labelled to detect new crowns, swine flu and other microorganisms.

The doctor can try the test results to guide the patient’s treatment.

They can also help epidemiologists track the movement of diseases in the community, which is very useful for controlling disease outbreaks.


															

		
		
	





	
		



	
	


		
		

							

					How does a Covid Mouth Swab Test work?
				

			
			
How does a Covid Mouth Swab Test work?


							

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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. 

  2. How to do a mouth swab COVID-19 test
    3. 

  3. What are the types of COVID-19 tests?
    4. 

  4. What COVID-19 test is more accurate?
    5. 



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

															

		
		
	





	
		



	
	


		
		

							

					Flocked swab+tube with Viral transport medium
				

			
			
How to Choose a Correct Virus transport medium for COVID-19 Testing


							

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How to Choose a Correct Virus transport medium for COVID-19 Testing


Disposable virus sampling tube
Disposable virus sampling tube




At present, the form of New Coronavirus is still very serious.


As the first step of covid-19 detection, the importance of sample collection and preservation is beyond doubt.


The influencing factor is sample collection; If there is a problem with the collected sample, the result is invalid regardless of the subsequent treatment.


Selecting appropriate virus transport media and collecting flocking swabs can improve the efficiency of new crown detection.


Almost all virus preservation solutions on the market contain non inactivated viruses directly, resulting in high infection risk for sampling, transportation and testing personnel.


Therefore, the front line of epidemic prevention needs to be able to inactivate virus samples directly.


At 37 ° C, we compared the preservation effects of cell medical (Dongguan) preservation solution containing guanidine hydrochloride and guanidine isothiocyanate with that without guanidine salt on avian coronavirus.


After 1-7 days of storage, under the same condition of 37 ℃, the preservation rate of virus nucleic acid was basically maintained at 100% when it was preserved with cell medical (Dongguan) preservation solution;


·Use virus preservation solution that can protect the sample from high temperature inactivation.


The results showed that high temperature inactivation had no significant effect on the integrity of coronavirus nucleic acid when coronavirus nucleic acid samples were preserved with high temperature inactivator.


The virus preservation solution developed by Cell medical (Dongguan) company is divided into inactivated and non inactivated. Different preservation solutions can be selected according to different test requirements and test conditions. If you have any questions or needs, please call us. Choosing cell medical (Dongguan) virus transport media solution in China is your right choice.


Furan compounds (guanidine isothiocyanate or guanidine hydrochloride, etc.) are typical protein denaturants.


They are often used to extract cell lysis in nucleic acid and inactivate virus. However, the furamethoxam component does not have the ability to work at room temperature.


Because the ability to preserve viral nucleic acid is easy to lead to sample degradation, it is not suitable for preserving new coronavirus samples. Therefore, it is strongly recommended that you choose the preservation solution without guanidine salt.


To this end, we call on the majority of medical personnel to select non inactivated virus transport media if they take samples for the purpose of nucleic acid detection and do not need to culture live viruses.


Vtm Swab | Virus Transport Medium with Sampling Swab
Vtm Swab | Virus Transport Medium with Sampling Swab


Use a virus medium that inactivates the virus.


At present, covid-19 detection is mainly to detect viral RNA, which needs to divide the virus.


Therefore, as long as the integrity and stability of virus nucleic acid can be guaranteed, there is no need to preserve live virus.


Therefore, in the current situation of fighting COVID-19, it is ideal to inactivate the virus while collecting samples. Some manufacturers have also introduced inactivated transport medium, but its inactivating component is guanidine salt.


The results showed that the salt forming component storage solution had insufficient storage capacity for viral nucleic acid at room temperature, which was easy to cause sample degradation.


Therefore, we recommend the use of virus preservation solution containing non guanidine protein denaturants.


The volume of solution in the sampling tube should be appropriate.


① When sampling each sample separately, we recommend that you select a virus sampling tube containing 1ml storage solution to ensure the correct storage capacity. It can not only meet the downstream needs of nucleic acid extraction and detection. Compare with 3ml storage solution. Triple the virus concentration!


② For large-scale preliminary screening and mixing test, we should choose to put the samples of 3-5 people into the sampling tube.


COVID-19 Pooled Sample Testing.


Nasal swab virus sampling kits Virus transport medium for COVID-19
Nasal swab virus sampling kits Virus transport medium for COVID-19


Please contact us soon



·Use a virus preservation solution that can transport and preserve samples at room temperature.


If the delivery temperature does not meet the standard, the viral nucleic acid may degrade, resulting in a “false negative” test result!


On the contrary, if cell medical uses a virus storage solution that can transport and stably store virus nucleic acid at room temperature.


We solved the problem of sample transportation and improved the accuracy of test results.


·Use virus preservation solution that can protect the sample from high temperature inactivation.


However, the research reports of Beijing Center for Disease Control and prevention in the Journal of “clinical chemistry” and Beijing Preventive Medicine Research Center show that high temperature inactivation can lead to the degradation of virus nucleic acid, thus reducing the detection rate of virus nucleic acid. Therefore, The false negative rate of New Coronavirus nucleic acid detection is high.


The Virus transport medium for COVID-19 developed by cell medical (Dongguan) Co., Ltd. include： inactivated and non inactivated.


If you have any questions or needs, please call us.


Choosing cell medical virus transport media solution in China is your right choice.


Please contact us soon











															

		
		
	





	
		



	
	


		
		

							

					Vtm Swab | Virus Transport Medium with Sampling Swab
				

			
			
Vtm Swab | Virus Transport Medium with Sampling Swab


							

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Vtm Swab | Virus Transport Medium with Sampling Swab


Description:Vtm Swab :for collection of COVID-19, influenza virus, hand foot mouth, measles rubella, norovirus, rotavirus and related samples.


And stored at normal temperature for short time and transportation, and long time storage in -70 C refrigerator or liquid nitrogen environment.


What is the difference between the liquid in your virus transport medium (VTM) and the virus sampling tubes of other manufacturers?


A: we use the universal transport medium recommended by China Influenza Center and who.


The Upgraded from Hank’s solution, adding a variety of components such as HEPES, amino acids, glycerol and so on, which has better performance than Hank’s solution


The ability to maintain virus integrity.


The positive rate of PCR detection and virus isolation was higher than that of traditional Hank’s solution.


Vtm Swab | Virus Transport Medium with Sampling Swab
Vtm Swab | Virus Transport Medium with Sampling Swab


We made a comparative experiment according to the effects of temperature and storage time on the preservation of virus.


The experimental results are as follows: the virus can be isolated within 48 hours when the virus is preserved with cell medical virus preservation solution at 2-8 ℃ or room temperature.


Principle of virus collection and precipitation with flocking swab?


The unique structure of the top of the flocking swab can almost completely extract and precipitate a small amount of DNA. Therefore, the flocking swab has more obvious advantages in micro DNA collection.


(1) Sample collection effect is good:


(1)Through the directional wiping effect of brush fiber layer.


(2) More than 95% sample release rate,near surface of the brush fiber is conducive to collecting samples.


(3) The capillary movement between the nylon fibers at the top of the flocking swab forms a strong hydraulic pressure. To absorb liquid or cell samples.


terile Nylon Flocked Nasopharyngeal Swab
Sterile Nylon Flocked Nasopharyngeal Swab


We not only undertake the task of collecting samples from patients, but also collect avian influenza viruses in the external environment. What kind of sampling tube should we choose?


A: Our conventional products of virus transport media, with a liquid volume of 3.5ml.


To collect virus samples from clinical patients;


If you collect and transport avian influenza virus in the external environment for a short time.


We recommend that you use a virus transport medium with a liquid volume of 5ml or 6ml.


(the liquid volume can be customized).


 

															

		
		
	





	
		



	
	


		
		

							

					Flocked Swabs |excellent absorption and elution ability
				

			
			
Flocked Swabs |excellent absorption and elution ability


							

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Flocked sampling swabs is a relatively new development trend of disposable sample collection equipment. As for flocked swab,their stable and reliable performance and excellent absorption and elution ability.


In order to improve the collection of samples, there are different types of flocking swabs. Such as pharyngeal swabs, gene detection swabs, forensic DNA detection swabs, gynecological cervical sampling swabs, microbial sampling swabs, etc. all flocked sampling swabs.


What is a nasopharyngeal flocked swabs?


The nasopharyngeal swab composed：a swab rod, a flocking swab cotton head.


Swab rod ：made of wood or PS or PP or ABS.


The sampling head of the swab shall be a flocked swab.


    

  •    To collect bacterial or virus samples from clinical pharynx, nasal cavity, ear canal or wound.
    • 

  •    Produced in 100000 level purification workshop and meet the requirements of ISO13485 quality system control and CE quality standard.
    • 

  •   This product can be EO or γ Irradiation sterilization.
    • 

  •   Single sterilization package and multiple sterilization packages are available.
    • 



Nasopharyngeal sampling_flocked swab
Nasopharyngeal sampling_flocked swab


How do you use a flocked swab?


Nasal swab collection method.


(1) Wet the swab in normal saline.


(2) Measure the distance from nostril to ear root with a swab and mark with your fingers.


(3) Insert the swab into the nostril in the direction perpendicular to the nose (face) until the finger touches the nose, keep the swab in the nose for 15-30 seconds, and then rotate it gently for 3 times.


(4) Put the swab into the virus preservation solution or transport medium, break the swab rod and place it completely in the tube.


(5) Tighten the pipe cover, mark it, put it in a plastic bag and seal it.


(6) If it is necessary to collect from two nostrils, one swab should be used respectively.


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


What is the reason for choosing flocked swabs?


The flocked swab provides the advantages of swab heads with different shapes.


Its rapid adsorption capacity and excellent release efficiency provide protection for limited or trace DNA.


It is especially suitable for the extraction of outdoor field and contact exfoliated cells.


The sampling swab is composed of nylon short fiber velveteen wool head and medical grade ABS plastic rod.


The function of nylon short fiber is like a soft brush, which can effectively improve the collection of cell materials;


The capillary movement between fibers forms a strong hydraulic pressure, so as to absorb the liquid sample;


At the same time, the sample is close to the swab surface and easy to elute.


The sampling swab of Dongguan Cell Medical company is a new type of medical sampling swab.


Innovative nylon fiber technology and high-tech spray planting technology.


It will not produce patient pain during collection.