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Comparison of advantages of various testing methods of COVID-19

Posted on 2021年9月14日2021年9月15日 by Dr. Lee

advantages of various testing methods

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

NAT Detection process

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

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

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

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

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

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

Sample collection, oropharyngeal swab or nasopharyngeal swab

NAT Detection process Nucleic Acid Testing

Antibody detection

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

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

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

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

Antibody detection kits-advantages of various testing methods

Comparison of advantages and disadvantages of two different detection methods

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

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

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

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

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

About us

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

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

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

E-mail：flockedswabs@gmail.com
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Disposable virus sampling tube kit

Posted on 2021年9月11日2021年9月11日 by Dr. Lee

Disposable virus sampling tube kit

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

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

Why use a disposable virus sampling tube kit？

Virus is a very tiny organism, which is composed of nucleic acid and protein shell. Without its own metabolic mechanism, there is no protease system. Therefore, if the virus leaves the host cell, it cannot continue to survive. Such tiny creatures can bring us many diseases, such as RNA, influenza, HIV and H1N1 viruses. Because it has no cellular structure, the virus itself cannot replicate. Instead, it invades the gene into the host cell and replicates a new virus with the help of the latter’s replication system.

In order to maintain the activity of virus samples and prolong the survival time of virus in samples.

The sampling swab will be stored and transported in the preservation solution.

flocked swab_Disposable virus sampling tube kit

Brief introduction

1. In the current COVID-19 epidemic situation, virus sample collection is an important link in virus detection.

2. Disposable virus sampling tube kits can collect, transport, inactivate and store virus samples in specific parts of human body. (not available in the United States).

So what’s the difference between the non inactivated and inactivated virus sampling tubes?

about non inactivated and inactivated virus sampling Virus transport medium

In short, the non inactivated sampling tube can protect the protein nucleic acid of the virus, so that the sampled virus has its originality, better integrity and higher detection rate. In addition to nucleic acid detection, scientists can also use non inactivated samples in other virus research experiments.

Advantages:

★ easy to operate and use

★ add virus stabilizing components to maintain virus activity in a wide temperature range

And reduce the decomposition rate of virus (non inactivated type)

1. Low temperature non freezing storage, does not damage the shell of the virus, and is convenient for long-distance transportation.

2. Applicable to all kinds of swab samples, including oral swab, nasal swab, throat swab, etc.

★ it contains virus lysate and virus nucleic acid preservation solution, which can quickly lyse the virus

Release nucleic acid and stably store nucleic acid (inactivated type)

The inactivated sampling tube contains cleavage salt, which can destroy the protein of the virus. However, it can protect the nucleic acid of the virus, so that the virus has no infectious activity. The sampling virus in the inactivated sampling tube can prevent the risk of secondary infection and ensure the safety of transportation and testing personnel.

note

1. forbidden to directly contact the preservation solution with virus samples.

2. forbidden to infiltrate the swab with preservation solution before sampling.

3. only used for the collection, transportation and preservation of virus samples. It shall not be used beyond the expected purpose.

4. Before using this product, pay attention to the shelf life and whether the packaging is intact.

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

Posted on 2021年9月9日2021年9月9日 by Dr. Lee

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

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

What are the covid-19 sampling tools？

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

Why use sampling tools？

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

1. Safety of specimens

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

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

2. False negative test results

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

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

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

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

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

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

Sampling steps of new virus collection tube

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

2) Sample type: pharyngeal swab and nasal swab.

nasal swab_COVID-19 sampling tools

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

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

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

Notes

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

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

Nasopharyngeal swab collection kits with virus transport media

Posted on 2021年9月7日2021年9月7日 by Dr. Lee

Nasopharyngeal swab collection kits with virus transport media

Cell medical (Dongguan) Co., Ltd.

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

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

Characteristics of nasopharyngeal swabs and virus transport tubes.

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

Nasopharyngeal swab collection kits with virus transport media

Product specification

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

certification

• CE IVD registration Kit；

• iso13484 certified manufacturer, registered with FDA；

COVID-19 Saliva Collection Kit Instructions

Posted on 2021年9月6日2021年9月6日 by Dr. Lee

COVID-19 Saliva Collection Kit Instructions

No needles, no blood, no accompany of Doctor, no need cooling,people can self-collect their Saliva RNA sample at home and mail to Lab for PCR test.Saliva Collection kits.

What is the saliva collection kit used for?

Used for sampling, transporting and storing saliva samples.

Saliva collection kit consists of a saliva funnel (with collection tube) and a test tube with 2ml cell preservation solution. It is used to collect salivary DNA / RNA samples for virus PCR analysis. The average yield of RNA from 2ml saliva sample was 110 μ g. But the output may be 15 μ G to 300 μ G.

DNA / RNA was then isolated from human saliva samples for nucleic acid detection. Including the detection of COVID-19.

The biggest advantage of the saliva collection kit is that it is convenient and direct. Even the elderly and children can easily collect saliva into the test tube. Collecting saliva DNA / RNA samples allows direct viral PCR analysis without additional steps to process saliva collected using the saliva collection kit.

The saliva collection kit is very suitable for home and commercial use.

How to use saliva collector?

Clean the mouth:30 minutes before collecting a saliva sample, please wash away the debris in the oral cavity with absorption.

1: install the collecting funnel on the collecting pipe and spit saliva into the collecting funnel until the saliva reaches the filling line of the collecting pipe.

2: hold the collecting tube vertically with one finger and close the funnel cover with one hand.

3:Open the DNA preservation solution tube and unscrew the tube capand pour the DNA preservation solution into the salivary collector.

4: hold the collection tube vertically and rotate it gently to separate it from the collection funnel.

COVID-19 Saliva Collection Kit Instructions

5: after screwing on the cover of the acquisition tube, gently shake it for 5 seconds for detection or storage at room temperature.

Saliva collector structure

Characteristics of saliva collector

Simple: the acquisition process is simple, fast and easy to operate;

Flexible: easily collected in the laboratory, clinic and even at home;

Convenience: the collected saliva is stable, stored at room temperature and convenient for transportation;

Extensive: especially suitable for children and patients who do not meet the conditions for blood sample collection;

Safety: noninvasive sample collection to reduce the chance of infection;

High efficiency:Convenient for automatic purification. We will collect more and better quality DNA

Flocked swabs can be customized according to customer needs

Posted on 2021年9月6日2021年12月25日 by Dr. Lee

Flocked swabs can be customized according to customer needs.

Flocked swab customization

Cell medical (Dongguan) Co., Ltd. is a comprehensive high-tech biotechnology company and an OEM factory of flocking swabs in China. We support custom production, our swab OEM factory produces flocked swabs, pharyngeal swabs, nasal swabs, oral swabs, sponge swabs, virus sampling tubes, transportation media, sample preservation solution and nucleic acid extraction kits. Our GMP factory was built in 2016, the factory has an ISO13485 quality management system, CE, FDA and other qualifications.

vtm kit production process

flocked swabs customization

We support ODM and OEM

Our factory has many automatic production lines. We support customized production, OEM, ODM, etc., and develop and design products with customers. Willing to challenge all kinds of demanding swabs.

Flocked swab customization, VTM kit customization, virus transport medium customization, virus collection and transport kit customization, disposable virus sampling tube customization, nasopharyngeal swab customization, oropharyngeal swab customization etc.

Welcome to consult our factory, we will serve customers wholeheartedly and develop high-quality flocking cotton swabs with customers.

Product features

1. nylon fiber flocked swab technology, the sample collection amount and release amount are as high as 95%;

2. nylon staple fixed vertically, faster and more efficient elution;

3. Single and independent packaging shall avoid pollution.

4. Strict process conditions, without DNase and expandable human DNA.

5. The tube body is transparent and the inspection materials are visible.

6. The unique patented casing design ensures the air circulation in the casing, prevents the inspection material from mildew due to the humid sealing environment. And avoids magazine pollution in the external air, which affects the inspection quality.

Our advantages

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

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

3. the front end is more sophisticated, which is suitable for the extraction of cells in the fingernail seam of the victim or suspect.

4. Unique swab breakpoint design, which is conducive to the automatic extraction workstation for sample extraction.

5. The whole swab is packed in a transparent plastic tube to avoid biological pollution.

10ml virus sampling tube

Posted on 2021年9月1日2021年9月1日 by Dr. Lee

10ml virus sampling tube

Brief introduction: the novel coronavirus pneumonia tube is 10ml, and the non inactivated virus transport medium (preservation solution) is 3ml, which is mainly used for COVID-19 sampling, nucleic acid sampling, new crown pneumonia sampling, COVID-19 sampling matching.

Cell medical (Dongguan) Co., Ltd., providing disposable virus sampling tube 10ml, 5ml, 2ml, 10ml, and coronavirus sampling tube, welcome to consult.

E-mail：flockedswabs@gmail.com

Our factory is located in No. 98, Wusha street, Chang’an Town, Dongguan City, Guangdong Province, China.

Product Article No.: vtm-b-cm0403 series

specification: 1 5ml / 10ml virus sampling tube (containing 3ml preservation solution), 1 sampling swab (nasal swab, pharyngeal flocked swab, optional)

packaging: 1 person use.

price: welcome to consult.

10ml virus sampling tube (with 3ml preservation solution), 1 sampling swab（Nasopharynx swab or oropharyngeal swab）)

Product information

specification and packaging

For one person: 1 5ml / 10ml preservation tube (containing 3ml preservation solution), 1 nasal sampling swab, 1 pharyngeal sampling swab and 1 biosafety bag. Customized services can also be provided as needed

purpose

For the collection, transportation and storage of virus DNA / RNA samples. The product is suitable for pharyngeal swabs, nasal swabs or specific samples after sampling

The stored samples can be used for subsequent clinical experiments such as nucleic acid extraction or purification.

storage conditions and validity period

Stored at 15-30 ℃ for 24 months before use.

After use, the sample can be stored at room temperature for 1 week. If it needs to be stored for a longer time, please put it at – 80 ℃。

[usage]

1. Before sampling, mark the relevant sample information on the label of the sampling tube.

2. According to different sampling requirements, use a sampling swab to sample at the corresponding target position.

3. Quickly immerse the sampled swab into the sterile sampling solution in the tube.

4. Break the part of the swab higher than the sampling tube, tighten the tube cover and shake it several times.

5. Place the sampling tube in the biosafety bag and seal it for transportation.

Note: specific sampling methods are as follows:

a) Nasal swab: gently insert the swab head into the nasal palate in the nasal canal, stay for a moment, and then slowly rotate and exit. Swab the other side of the nose with another swab

Hole, immerse the swab head into the sampling solution, and discard the tail（ (suitable for sampling with this product)

b) Pharyngeal swab: wipe bilateral pharyngeal tonsils and posterior pharyngeal wall with a swab. Similarly, immerse the swab head in the sampling solution and discard the tail（ (suitable for sampling with this product).

virus sampling tube 10 in 1 mixed sample detection

Posted on 2021年9月1日2022年3月22日 by Dr. Lee

10 in 1 mixed sample detection virus sampling tube

Ten in one hybrid collection and detection technology is to collect 10 flocked swab samples collected by 10 people into a collection tube for nucleic acid detection. Once we find positive in the mixed collection screening, we will immediately notify the relevant departments to temporarily isolate 10 subjects in the mixed collection tube. Single tube swabs were collected again for reexamination to determine which of the 10 subjects was positive; If the test result is negative, it means that all ten samples are negative and the mixed ten people are safe.

Mixed detection greatly improves the detection ability of nucleic acid. Using this combination mode, the daily detection ability can be increased by 10 times without increasing human and material resources. It can carry out more screening and early diagnosis, strive to find patients one minute in advance, isolate patients one minute in advance, reduce transmission and save social costs.

Product overview:

① It is applicable to large-scale testing projects such as schools, factories, units and urban areas. It has the advantages of high screening efficiency and resource saving.

② The sampling tube for mixed sample detection of virus uses medical grade PP as raw material. Unique structural design and manufacturing technology prevent night leakage. It has the characteristics of no RNA enzyme, no DNA enzyme, no endotoxin, high temperature resistance, high pressure resistance and high-speed centrifugation.

③ 10ml sample preservation solution (VTM solution) is pre installed in 50ml sampling tube for 10 person mixed sample detection.

④ The head end materials of virus sampling swab include flocking, polyester fiber, rayon, etc.Produced by special process, it has no DNA / RNA, no RNA enzyme and no DNA enzyme. It has the characteristics of high collection rate, high release rate, convenient operation and no sundries. The sampling success rate and detection rate are greatly improved.

⑤ Biosafety bag: for preservation and transportation after sample collection to prevent accidental leakage and improve safety.

⑥ Each set of virus sampling tubes includes: 1 sampling tube pre loaded with virus preservation solution, 10 individually packaged swabs。

Instructions for use:

10 in 1 mixed sample detection virus sampling tube Instructions for use

①. Remove the paper and plastic packaging of the swab from the torn place

②. Take the swab to the target part for sampling

③. Immerse the swab head of the sampling swab into the virus preservation solution

④. Break the swab rod

⑤ .at the pharyngeal breaking point. Repeat steps ① ~ ④ for the other 9 sampling times. After collecting 10 swab samples in the sampling tube, tighten the tube cap and shake gently for several times to complete the sampling.

⑥ .immediately place the sampling tube in the biosafety bag, seal and transport it for inspection.

Inactivation Virus transport medium

Posted on 2021年8月30日2021年8月30日 by Dr. Lee

Inactivation Virus transport medium

purpose

This product is used to inactivate a variety of viruses, such as clinical 2019 ncov, influenza, avian influenza, hand, foot and mouth, measles virus, norovirus, rotavirus and other virus samples, as well as the transport of virus nucleic acid. Compatible with various virus nucleic acid extraction kits on the market, it can realize seamless connection with downstream nucleic acid extraction.

Product specification:

Model	Virus transport medium (inactivation)	Number of swabs
VTM-B-CM040320S	1 sampling tube with 3ml VTM (inactivated)	2 flocking cotton swabs (nasopharyngeal swab + oropharyngeal swab)
VTM-B-CM040311S	1 sampling tube with 3ml VTM (inactivated)	1 flocking cotton swab (nasopharyngeal swab)
VTM-B-CM040312S	1 sampling tube with 3ml VTM (inactivated)	1 flocking cotton swab (oropharyngeal swab)

Flocked swab+tube with Viral transport medium Multiple options

Product advantages:

Safer.

Virus lysis buffer contains a variety of virus inactivating components, which can inactivate the virus efficiently and ensure the safety of transportation and testing personnel.

More stable.

The preservation solution contains RNase inhibitor to ensure the integrity of nucleic acid and prevent false negative results. There is no need for storage and transportation at 2-8 ℃ after sampling, and the nucleic acid quantitative results will not be affected after being stored at room temperature for 48 hours. The nucleic acid in the positive sample can still be detected after the virus is stored at room temperature for 7 days, which saves the storage and transportation cost of virus samples.

More convenient.

Our self-developed sample tube and flocked swab are combined into a set of products, which not only increases the safety of the operator, but also ensures the stable adsorption and release of samples, so that more samples can be collected in the same operation.

Nylon flocking swab This design ensures the maximum adsorption and release of samples, and the same operation can collect more samples than other swabs. Special design – easily broken groove

Inactivated or non inactivated, how to choose?

goods	Non inactivated virus sampling tube	Inactivated virus sampling tube
Product name	Virus sampling kit	Virus transport medium (inactivation)
Quality Certification	MSDS,CE,ISO	MSDS,CE,ISO
purpose	Nucleic acid detection and virus isolation	For nucleic acid detection only
Composition	Preservation solution: HEPES, amino acids, protein stabilizer and other components are added to slow down the decomposition of virus.	Lysate: guanidine with appropriate concentration combined with a variety of virus cleavage components can inactivate RNase and ensure the integrity of nucleic acid
Transportation conditions after sampling	Transport at 2-8 ℃ for no more than 48 hours	Room temperature
Does the sample need to be inactivated?	yes. 56 ℃ for 30 minutes	No need. The sampling solution has inactivation function without further heating

producting process

Cell medical (Dongguan) Co, Ltd. is a professional manufacturer of virus transport medium.

E-mail：flockedswabs@gmail.com

VTM viral transport medium tube

Posted on 2021年8月30日2022年3月22日 by Dr. Lee

VTM viral transport medium tube_virus sampling tube-universal transport medium

1.[information]

1. Common name: disposable virus sampling tube.

2. Product Name: universal transport medium.

3. Specifications and models vtm-a-cm and vtm-b-cm series.

2.[package specification]

20 copies / box.

VTM viral transport medium tube-disposable sampling kits

3.[VTM use]

For sample collection, transportation and storage.

4.[viral transport medium tube test principle]

On the basis of Hank’s, potassium chloride, magnesium chloride and calcium chloride are added to provide necessary nutrient ions for pathogenic bacteria to make it more specific. The preservation time is longer, the integrity of pathogenic bacteria morphology is preserved to a greater extent, and the extraction rate of pathogenic bacteria is improved.

5. [structure composition ]

flocked swab and virus transport medium.(or universal transport medium).

6. [sample requirements]

the collected samples shall be sent to the laboratory within 48 hours at 2-8 ℃. If they cannot be sent to the laboratory within 48 hours, they shall be stored at – 70 ℃ or below. The samples shall be inoculated and separated as soon as possible after being sent to the laboratory.

7.[storage conditions and validity period]

1. The products shall be stored in a clean, hygienic, dry and ventilated environment;

2. The temperature is 5 ℃ ~ 35 ℃. 3. Relative humidity ＜ 85% RH. 4. Product shelf life: 12 months.

universal transport medium and flocked swabs

8.[usage]

Firstly,before sampling, mark relevant information on the label of the sampling tube.

Secondly,use the corresponding sampling flocked cotton swab for sampling.

Then,after sampling, quickly put the cotton swab into the sampling tube, break the part higher than the sampling tube, and tighten the tube cover.

Finally,see the following for specific sampling methods.

a)Nasal swab: gently insert the sampling head into the nasopalatine part of the nasal catheter, stay for a moment, and then rotate it slowly to exit. Immerse the collected specimen into the liquid in the sampling tube, break the excess part and discard it, and tighten the sampling tube cover.

b) Pharyngeal swab: wipe bilateral pharyngeal tonsils and posterior pharyngeal wall with sampling head. Soak the collected specimen in the sampling solution, break the excess part, discard it, and tighten the sampling tube cover.

9.[precautions]

1. After collecting pathogenic bacteria samples, we should completely insert the disposable sampling flocked cotton swab into the preservation solution to retain pathogenic bacteria to the greatest extent.

2. The collected samples must be fresh and sent for examination in time to avoid the death of pathogenic bacteria.

3. Forbidden to use products with damaged packaging and expiration date to prevent pollution.

Note: For in vitro diagnosis. For virus sampling, transportation and storage.Including COVID-19.

Food can lead to serious events; It has certain irritation to eyes and skin. If it accidentally splashes into eyes, rinse with clean water.

10.[Manufacturer information]-VTM virus sampling tube kits

[name of manufacturer] cell medical (Dongguan) Co, Ltd .

[address] No. 98, Wusha street, Chang’an Town, Dongguan City, Guangdong Province, China .

[E-mail]：flockedswabs@gmail.com

NAT Detection process

Antibody detection

Comparison of advantages and disadvantages of two different detection methods

About us

Why use a disposable virus sampling tube kit？

Brief introduction

note

What are the covid-19 sampling tools？

Why use sampling tools？

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

Characteristics of nasopharyngeal swabs and virus transport tubes.

Product specification

certification

Related products

Contact us

What is the saliva collection kit used for?

How to use saliva collector?

Saliva collector structure

Flocked swab customization

We support ODM and OEM

Product features

Our advantages

Product information

Product overview:

Instructions for use:

Inactivation Virus transport medium

purpose

Product specification:

Product advantages:

Inactivated or non inactivated, how to choose?

Cell medical (Dongguan) Co, Ltd. is a professional manufacturer of virus transport medium.

1.[information]

2.[package specification]

3.[VTM use]

4.[viral transport medium tube test principle]

5. [structure composition ]

6. [sample requirements]

7.[storage conditions and validity period]

8.[usage]

9.[precautions]

10.[Manufacturer information]-VTM virus sampling tube kits