Tag Archives: Application virus sampling tube

Nylon Flocked Swab

Nylon Flocked Swab

Posted on by

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.

Pooled Sample Test Viral Transport Media Kits Manufacturer

Pooled Sample Test Viral Transport Media Kits Manufacturer

Posted on by

The epidemic is an order, prevention and control are a responsibility, and life is more important than Mount Tai.

One-time use of  Viral Transport Medium accelerates production, Cell medical (Dongguan) Co., Ltd. has a daily production capacity of more than 1 million sets of Viral Transport Media kits.

One-time use Virus Sampling Tube, Accelerated Overtime Production, 10ml Viral Transport Media Tube, 20ml Viral Transport Media Tube, 30ml Viral Transport Media Tube.

20-in-1: Pooled Sample Test, originally originated from a single set of samples to 5-in-1, 10-in-1, and maybe 30-in-1, 40-in-1, and 50-in-1 in the future.

The purpose of collecting and mixing is to improve efficiency and quickly screen positive patient samples.

"<yoastmark

How strong is the detection ability of 10 people’s sample nucleic acid (PCR test) mixed together?

The new wave of the epidemic has affected the hearts of people all over the world. Many people are cheering on the Internet to overcome the epidemic. However, in the recent period, the outbreak of asymptomatic patients and local confirmed patients has not yet reached an inflection point. cases increased.

Why do 10-in-1 Pooled Sample Test?

Mainly because of the following three advantages.

1. The speed of nucleic acid detection can be increased by 10 times.

Citizens line up in an orderly line for pcr swab testing

Citizens line up in an orderly line for PCR swab testing

In the past nucleic acid testing, each person took a test tube.

After the test, we put the sample into the test tube for preservation.

The samples of 10 people: Stored in a test tube.

If tens of thousands of people in the city do nucleic acid swabs alone.

Then, we need millions and tens of millions of collection tubes and a large number of medical personnel.

In this way, the speed of nucleic acid detection will be very slow. Unable to achieve the desired effect.

2. It can quickly identify the positive infected people in the crowd.

Now the infected people are all asymptomatic patients with fever and no cold. It is impossible to detect them by ordinary methods. Only through nucleic acid testing can the hidden dangers in the crowd be excluded.

If everyone is tested individually, the speed of nucleic acid testing will be particularly slow. Over time, people queuing for nucleic acid testing are likely to cause cross-infection.

Completing the test as soon as possible and excluding infected people from the crowd as soon as possible can also reduce the scope of infection, and the mixed detection method for each person can improve the speed and reduce the scope of infection.

If there is one positive in it, wouldn’t it cause cross-infection?

Even if the other nine were negative, they would definitely be implicated.

3. Can reduce the cost of nucleic acid testing.

Although in some places our nucleic acid tests are all free, and people do not need to pay a penny, that is because all these nucleic acid costs are paid for by our government.

Our government will uniformly purchase test reagents for nucleic acid detection, and then uniformly pay for some of the testing costs.

There are millions of people in a city, and the cost of these nucleic acid tests is a lot of money.

So what is the principle behind this 10-person sample being mixed together?

Nucleic acid detection using this mode is to deal with large-scale nucleic acid detection.

Each group of 10 people, after completing the test, put the flocked swab samples into a collection tube, and then centrally send them to the local laboratory for testing.

Medical Swab Test Kit specimen collection sterile nylon flocked swab

Medical Swab Test Kit specimen collection sterile nylon flocked swab

If these 10 people are all negative, then it proves that these 10 people are all safe and do not need separate isolation and separate testing.

If one of the 10 people is positive, the remaining 9 people will have special epidemic prevention personnel.

These 9 people will be sent to the isolation area for individual isolation, and then each person will be tested individually every day.

After 14 days of isolation, in In the past 14 days, the results of these 9 people are all negative, which can ensure safety and allow them to return to normal life.

Nucleic acid detection using this mode is to deal with large-scale nucleic acid detection.

Each group of 10 people, after completing the test, put the flocked swab samples into a collection tube, and then centrally send them to the local laboratory for testing.

Pooled Sample Test Viral Transport Media Kits Manufacturer

Viral Transport Media Kits Manufacturer

Viral Transport Media Kits Manufacturer

Cell medical (Dongguan) Co., Ltd.

Product name: Disposable virus sampling tube ( Viral Transport Media)

Model: CM-F005-30 (12ml)

Specification: 12mL/tube

Type: inactivated/non-extinguishing/sample release agent

Scope of application: nucleic acid sampling, for new coronavirus sampling, COVID-19, coronavirus sampling, nucleic acid sampling, collection, transportation and storage of virus samples, etc.

Contraindications: none

20 in 1 virus sampling tube Manufacturer: Cell medical (Dongguan) Co., Ltd.

Output: 200,000 sets per day

10 mixed 1 production capacity of 1 million sets per day

Throat swab production capacity: 10 million per day.

Reuse Nasopharyngeal Swabs Disadvantage

Reuse Nasopharyngeal Swabs Disadvantage

Posted on by

Nasal swabs reused at an Indonesian airport? What are the dangers of reusing nasal swabs? 

Since the epidemic, the term nasal swab testing has entered our lives. Basically, you will be asked to do a nucleic acid test when you are on a business trip or travelling. After the test is completed, the sterile flocked swab will be processed for medical waste. However, news broke out recently that refreshed the three views, and netizens called out “there is no bottom line”!

According to reports, employees of a medical company in Indonesia were found to be repeatedly using sterile nasal swabs when testing airport passengers. At present, more than 9,000 passengers are expected to be affected.

After investigation, the Indonesian police found that the employees involved first performed Nasopharyngeal Swabs tests on passengers with sterile nasal swabs every day, then cleaned the used sterile swabs with alcohol, and then packaged them for use by the next batch of passengers. . This behaviour is outrageous.

Contents of this article

1. What are the dangers of reusing nasal swabs?

2. Why are the swabs for PCR Swab Test put together?

3.  What should I pay attention to when doing nucleic acid testing?

4. Will the swabs for nucleic acid testing be reused?

What are the dangers of reusing nasopharyngeal swabs?

The nose is a barometer of human health. When there are lesions in the body, the colour of the snot changes to yellow or green. Nasopharyngeal swabs are a test sampling method to assess the presence of respiratory viral or bacterial infections by collecting samples from the surface of the respiratory mucosa.

As a rule, nasal swabs cannot be reused. If the nasal swab is reused, the consequences will be disastrous.

If the nasal swab is reused, it will increase the risk of virus infection. Previously, a British research team found that two kinds of cells in the nose may be the other infection sites of the new coronavirus. A clinical study found that the viral load of nasal flocked swabs The amount is significantly higher than that of throat swabs. If nasal swabs are reused, it is likely to cause cross-infection and expand the scope of infection.

On the other hand, it may lead to inaccurate test results, false positives or false negatives. It may cause psychological panic and unnecessary treatment to the subjects, and false negatives may mean that the subjects cannot find out that they have been infected in time, miss the best treatment time, and even cause more people to be infected.

Nasopharyngeal flocked swab CellMedical

Nasopharyngeal flocked swab CellMedical

Why are the sample collection swabs for nucleic acid testing all put together?

This kind of multi-person mixed inspection can improve efficiency and reduce costs.

"<yoastmark

Mixed sampling testing refers to mixing samples from multiple people (generally no more than 10 people) into the same test tube for testing, improving testing efficiency and reducing testing costs, but the waiting time for centralized sampling may be slightly longer. According to the voluntary principle, the nucleic acid test of all employees can be tested by mixed sampling technology. The laboratory testing time for mixed sample and single-tube testing is the same, which does not affect the time for issuing the testing report.

The so-called five-in-one and ten-in-one mixed sampling detection technology are to put 5 or 10 individual swabs into a collection tube. When the test result is negative, the mixed sample is negative, and the mixed sample is 5 people. or 10 people are safe;

If there is a positive result, the relevant department will be immediately notified to temporarily isolate the 5 or 10 subjects in the mixed tube, take a single tube swab again for the review, and then determine which of the 5 or 10 people is positive.

What should I pay attention to when doing a nucleic acid test (PCR test)?

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

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

Today,  many people who travel to and from high-risk areas of the epidemic require nucleic acid testing.

So, what should we pay attention to when doing nucleic acid testing (PCR SWAB TEST)?

Before the nucleic acid test: do not eat within 2 hours, do not smoke or drink within 30 minutes, carry a valid ID card, wear a mask correctly, and inform the testing personnel of past medical history or related matters.

When doing nucleic acid testing: Keep a distance of more than 1 meter when queuing, tilt your head slightly, relax, take a deep breath, and have symptoms such as dry cough or sneezing, use a tissue or cover with your arm.

After the nucleic acid test: leave the collection site immediately, and wipe your hands with hand sanitiser or alcohol.

In fact, whether it is a nasopharyngeal swab or a throat swab, it is an effective virus detection method. Although there will be slight discomfort during the test, it will soon return to normal and will not affect your health. Therefore, if necessary, we must actively cooperate with nucleic acid testing, which is responsible for ourselves and others.

Nucleic acid detection: For virus detection method.

It uses a collection flocked swab to collect a sample from the throat or nose of the tester and then conducts the test to obtain the final result.

Some people found that the flocked swabs for nucleic acid testing will be placed in a bottle(VTM Tube).

This is a mixed test, and most of them occur during nucleic acid testing of all staff, which will not affect the detection effect.

Will the swabs for nucleic acid testing be reused?

Prohibition reused.

In addition to sampling, reagents and other factors, the subject’s own reasons may also lead to “false negatives”.

Not to eat for two hours before the nucleic acid test, not to drink water for the first 30 minutes. And not to smoke, drink water or chew gum to reduce behaviours that may interfere with the test results.

There are other influencing factors before sampling and testing,

1. Please do not take antibiotics a few days before the nasal swab.

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

3. Do not eat, smoke, or drink for a few hours before the nasal swab.

Why Choose Anal Swab Covid Tests

Why Choose Anal Swab Covid Tests

Posted on by

Why Choose Anal Swab Covid Tests

A friendly netizen said,

“The anal test first asks you to take off your pants and lie on the bed,

The paramedic then stabs (anus) twice with an anal swab,

shallow once deep

In addition to the endless shyness in the whole process,

Nothing else feels like it! ”

A shy handsome man

A shy handsome man

 

Xiaolee will tell you why you need to do anal swabs.

Currently screening for COVID-19,

Mainly use an oropharyngeal swab and nasopharyngeal swab nucleic acid detection,

Because of its convenience and speed, it is suitable for large-scale screening;

Nasopharyngeal Swab Sample

Nasopharyngeal Swab Sample

However, some asymptomatic or mildly infected people,

The disease recovered quickly after infection,

Nucleic acids in the respiratory tract and pharynx are undetectable within 3-5 days.  

longer duration of nucleic acid-positive stool or anal swab,

Therefore, adding anal swabs can improve the detection rate,

Effectively reduce the probability of false negatives,

Reduce missed diagnoses!

One of the anal swab sampling poses

One of the anal swab samplings poses

 

Friends who have done nucleic acid swab tests have experience,

In previous tests,

The most uncomfortable part should be the part of the nasopharyngeal swab,

To poke the nose is to poke deep into the soul.

According to the description of the anal swab recipient,

“The whole process was lying in bed and the medical staff helped.

Insert the tip of the sampling cotton swab into the anus and turn it a few times.

Twice in total, each for about 10 seconds.

Although a little surprised and a little embarrassed,

But understandable and bearable,

After all, this rule is for everyone’s sake. ”

Many Chinese friends who have returned to China for quarantine

I have also experienced the subtle taste of it.

 

 

How to Swab For Covid Test

How to Swab For Covid Test

Posted on by

How to Swab For Covid Test

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

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

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

The doctor is testing the patient's nasopharynx swab

The doctor is testing the patient’s nasopharynx swab

What is the principle of nucleic acid detection?

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

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

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

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

The three forms of nucleic acid detection have their advantages.

Nasal swab test

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

Flocked Tip Swab Nylon Sterile Nasal Swab Stick

Flocked Tip Swab Nylon Sterile Nasal Swab Stick

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

Throat swab test

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

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

COVID-19 Testing: Throat swab test

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

Anal swab test

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

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

Anal swab

Anal swab

Why do multiple nucleic acid tests need to be performed?

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

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

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

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

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

Covid-Nucleic-Acid-Test

Covid Nucleic Acid Test Nasopharyngeal Swab Test

Posted on by

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-19 Saliva Collection Kit

How accurate are saliva swab DNA tests?

Posted on by

Is the DNA test of the saliva swab accurate?

Many people doubt the accuracy of the saliva swab test.

However, you can rest assured, because the accuracy of oral saliva swab testing is as accurate as other DNA testing methods.

Moreover, this is not the same as a finger puncture or a blood test, it is not painful at all.

In recent years, DNA testing has become more and more popular.

Whether you want to confirm your parental relationship, understand where your genes come from or want to optimize your exercise.

We are currently working on direct-to-consumer DNA testing of saliva swabs.

You have decided to use DNA testing to better understand your body and optimize your training.

However, before you take the first step and buy a set of home DNA testing kits, you should have some concerns.

Although most of the feedback and research has been confirmed to be positive, we are here to learn more about this and help you make an informed decision.

How much saliva is needed for a DNA test?

Saliva Sample Collection Kit :Disposable saliva DNA RNA sampling tube

Saliva Sample Collection Kit: Disposable saliva DNA RNA sampling tube

2ml-4ml.

The saliva collection components are easy to use, and each set has detailed instructions.

You can provide samples for different health conditions, including common medications used during pregnancy, colds or flu (including medications for acid reflux or heartburn).

But if you want to use drugs to reduce the white blood cell count, such as chemotherapy, you’d better wait two weeks or wait until the white blood cell count returns to normal.

After mixing with DNA stabilizing buffer, the temperature range of your saliva sample (-4oF to 122oF) is stable.

Please send the collected samples to the laboratory as soon as possible.

Is the DNA test at home accurate?

Yes, DNA testing at home is very accurate.

You will only encounter errors when the genetic sample is damaged (for example, you have eaten before the sample is collected) or the laboratory quality is poor.

Therefore, it is necessary to choose a well-known DNA testing supplier for testing.

An accurate genetic test report can know in advance whether the body is in danger of disease.

By improving the living environment and behaviour habits, avoiding or delaying the occurrence of the disease, or determining whether there is a specific drug in the case of malignant disease.

Target, so as to more accurately select the treatment method.

The results in each report are derived from at least three peer-reviewed research papers.

It just repeats the genes that have an impact on health, health and nutrition.

This means that you can change the way of real-life based on the genetic variants you carry.

Through strict internal and external procedures, we have passed ISO27001 certification to identify risks, evaluate all control systems, improve our reliability and security, and comply with international data security standards, so as to ensure that our customers and business partners can trust us.

What can you do to ensure that your DNA test results are accurate?

In order to ensure that your DNA test results are accurate, you need to follow the instructions at the back of the box.

Before starting, please read the instructions carefully:

Before wiping dry, make sure you have nothing to eat or drink.

-The best time to take the exam is to brush your teeth in the morning and the first thing before drinking the first cup of tea.
Before taking the test, it is best to open the sealed mouth swab to ensure that it will not be affected.

After removing the cotton swab, open your mouth and use a pointed tip (cotton swab, slightly larger) to gently wipe your cheeks.

Try not to scrub vigorously, because the important part of the sample is saliva.

Be sure not to put paper towels in the plastic container provided.

Take care to break the pole where it is needed.

Fill out the attachments, sign and seal the enclosed envelope, and then send it to the laboratory for inspection.

Bear with patience and watch your test. This process will start with the receipt of samples in the laboratory and will take 10-14 days.

Is the accuracy of mouth swab detection relative to other DNA collection methods?

Because the saliva swab is noninvasive, many people question its accuracy.

However, you can rest assured that the accuracy of oral swab detection is as accurate as other DNA detection methods. And, unlike finger punctures or blood tests, it doesn’t hurt at all.

Whether you are building a cabinet in IKEA, pressing a map or doing DNA testing, you can get accurate results as long as you follow the instructions.

Remember, DNA testing is wrong only if your test results are wrong or you don’t follow the instructions.

Cost is an important factor in performing such tests, so it must be studied.

Often, you don’t just pay for the test suite. You also have to pay a test fee to analyze your results. If the test you selected does not belong to the laboratory, please choose a supplier with a good reputation and excellent laboratory.

Every laboratory we use will conduct regular spot checks to ensure that your samples have been tested correctly and your results are 100%.

 

 

What is Virus Sampling Tube

What is Virus Sampling Tube

Posted on by

Since the outbreak of COVID-19 pneumonia, through multiple rounds of new coronavirus nucleic acid tests on personnel in relevant areas.

A virus sampling tube is a set of centrifuge tubes for sampling and transportation of influenza virus (including COVID-19), hand, foot and mouth virus and other viruses in the microbial sampling transportation tube.

Also known as the specimen transport tube, the virus transport medium has now become a commercial product.

Disposable sampling tube kit

The disposable sampling tube consists of a swab + sampling tube + virus preservation solution.

That is flocked swab, plastic virus sampling tube and virus transport medium.VTM

We have been able to quickly and effectively identify infected persons and treat them in a timely manner.

At the same time, we can quickly divide risk management areas and effectively Prevent the further spread of the epidemic.

The high efficiency and accuracy of the nucleic acid Swab Test is the “gold standard” for the diagnosis of new coronary pneumonia.

VTM KIST Virus Sampling Tube

Disposable virus sampler

Disposable sampling tube manufacturer Cell medical

In order to support the epidemic prevention work, Cell medical (Dongguan) Co., Ltd. has launched a single-use sampling tube.

Which meets the requirements of the COVID-19 virus nucleic acid sampling and testing technical specifications issued by the country.

VTM kits are suitable for the collection, transportation and storage of throat swab or nasal swab samples.

At the same time, our products have a variety of models and specifications, which can be used with multi-planting wool swabs, which are suitable for use by medical units at all levels.

At the same time, the kit contains a biosafety bag for the preservation and transfer of specimens after collection to prevent Accidental leakage, etc., improving the safety of use.

 

Viral Swab Collection & Transport Kits | 3ml Tube

How to obtain a nasopharyngeal swab specimen?

Posted on by

How to obtain a nasopharyngeal swab specimen?

Overview.

Nasopharyngeal swab specimen collection of respiratory mucosal surface specimens is a method for the diagnosis of Covid-19 novel coronavirus in adults and children.

This operation can also detect patients with suspected respiratory infections caused by other viruses and bacteria.

There are no special contraindications for nasopharyngeal swab specimens. However, clinicians should treat the following conditions with caution: the recent history of nasal trauma or surgery, severe nasal septum deviation, chronic nasal obstruction, and severe coagulation.

Preparation for nasopharyngeal swab specimen sampling.

The nasopharyngeal swab is a special sampling tool, which consists of a sampling head made of soft plastic or flocked nylon. In addition to nasopharyngeal swabs, operators also need personal protective equipment (PPE) such as isolation gowns, non-sterile gloves, protective masks, and face shields.

Before starting to use, please make sure that all virus sampling tubes are labeled, and the analysis application form is filled incorrectly.

Nasal Swab Sampling Steps

We recommended that patients with suspected Covid-19 type coronavirus infection wear masks.

The patient took off the mask and blew his nose with a paper towel to remove excessive secretions from the nasal passages.

Take out the tissue. Slightly lift the patient’s head so that it can wipe into the nasal passage. Ask the patient to close his eyes to alleviate the slight discomfort caused by the operation.

Along the nasal septum, gently push the swab above the bottom of the nasal passage forward until you feel a sense of resistance indicating that the swab has reached the nasopharynx.
Insert the swab in the nostril parallel to the upper jaw.

If resistance is encountered during pushing the flocked swab, the scraper should be withdrawn, try to adjust the angle and then push again, at the same time closer to the bottom of the nasal passage.

The depth of the nose insertion should be equal to the distance from the nostril to the opening of the external auditory meatus. CDC recommends keeping the sampling head for a few seconds after it reaches the nasopharynx, allowing the sampling head to absorb the secretions, and then slowly rotating the swab to discharge it slowly (people who have done nasopharyngeal swabs will appreciate which kind of sourness Cool feeling). Your institution may also recommend sampling for a few weeks after exiting the spin. Ask the patient to wear a mask.

Nasopharyngeal swab specimen processing.

Open the sampling tube with virus transport medium, put in the flocking swab, fold out the sample tube in the groove, and discard the tail. Tighten the label sampling tube cover, and wipe the sampling tube with a sterile wipe.

Then place the sampling tube in the biohazard bag opened by the assistant. Some departments may require you to put the samples back in their original packaging and then send them for inspection. According to CDC guidelines, process the swab sample directly, or put the sample in a preservation solution or store it at room temperature.

Viral Transport Kits | Viral Transport Medium | VTM Kit

Viral Transport Kits | Viral Transport Medium | VTM Kit

Posted on by

Viral Transport Kits | Viral Transport Medium | VTM Kit

Winter is coming, the cold current is coming, the goose feather like snow is flying all over the sky, and the whole world is wearing a white coat.

Many customers once again throw this “soul question” to us. “Can your Viral Transport Kits adapt to the cold environment?”

He answer is yes. Let’s follow Cell medical Dr. Li for experimental verification!

Experimental purpose

Verify that the Viral Transport Medium of cell medical (Dongguan) Co., Ltd. has no significant impact on its service performance after low-temperature freezing and thawing.

Experimental scheme

Simulate the process of low-temperature freezing during transportation, place the sampling tube in a low-temperature environment for 24 hours, and then melt at room temperature. The sampling tube products stored normally without freezing and thawing were used as the control. Each group was added with virus mixture, stored at 4 ℃ for 24 hours, and then bathed in water at 56 ℃ for 30 minutes for nucleic acid extraction and nucleic acid detection. Set 2 repetitions for each group.

1. Low temperature icing simulation: set two low temperature gradients and place the sampling tube in two low temperature environments of – 20 ℃ and – 80 ℃ respectively.

2. Mixing of virus solution: We used two different concentrations of virus solutions, representing high and low concentration gradients respectively. The copy numbers of virus solution were 106 copies / ml and 104 copies / ml, respectively. Simulate the actual sampling process, add the virus solution in the volume ratio of 1:10 to the sampling solution, and the virus solution is 100 μ 50. 1ml of sampling solution and add 100 ml to it μ L of oral liquid.

3. After mixing each group, place it in 4 ℃ environment for 24 hours and inactivate it in 56 ℃ water bath for 30 minutes.

4. Extract the nucleic acid of each group of virus, and detect the virus content of each group by RT qPCR. The CT value is used as the basis for result evaluation. The higher the CT value, the higher the detected concentration.

5. The experimental groups are as follows:

Main experimental materials

  •   Sampling solution: virus preservation solution produced by cell medical (Dongguan) Co., Ltd.
  •  virus diluent: the virus isolation serum-free medium of Cell medical was used for gradient dilution.
  •   virus for verification: porcine epidemic diarrhea virus. Its structure and genome size are similar to those of New Coronavirus.
  •   nucleic acid extraction reagent: non cleavage nucleic acid extraction reagent (magnetic bead method).

Viral Transport Kits Experimental results.

1. Product appearance.

the color is consistent without precipitation.

2. Performance evaluation results

amplification curve.

A. amplification curve of each experimental group and negative control group:

The groups with earlier peaks are the amplification curves of high concentration groups, and the groups with later peaks are the amplification curves of low concentration groups.

Empirical conclusion.

The Viral Transport Medium products of Cell medical (Dongguan) Co. ,Ltd. will not affect its service performance after one-time freezing and thawing.

And can fully meet the requirements of low-temperature transportation and low-temperature preservation of virus samples.

Viral Transport Kits:composed of flocked swabs and test tubes with Viral Transport Medium(VTM)