Tag Archives: Nasopharyngeal sampling

What is viral transport medium ?

What is viral transport medium ?

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Viral transport medium is a protective liquid medium added to the virus sampling tube to protect the samples after nasopharyngeal swab sampling and is usually called virus preservation solution in China.

Usually, in nucleic acid testing (PCR swab test), we cannot perform nucleic acid PCR directly at the sample collection site.

We need to add virus preservation solution (VTM) to the samples collected by swab for transfer check.

Pooled Sample Test Viral Transport Media Kits Manufacturer

Viral Transport Media Kits Manufacturer

What is a virus?

Viruses are microorganisms whose structure is very simple.

There is no way to complete the process of self-replication.

They need the help of host cells and the nutrition of the host to complete virus replication.

The virus can infect humans as well as many other animals.

Influenza viruses such as common infectious diseases are usually RNA viruses.

There are many common viruses that cause human infection, which can cause respiratory diseases, such as cold virus, influenza virus, HIV and influenza A virus.

Since it has no cellular structure of its own, the virus itself cannot replicate.

But invades the gene into the host cell and replicates the new virus with the help of the latter’s replication system.

In conclusion, viruses are diverse and can cause damage to multiple parts of the body. “

After the virus sample is collected, in order to maintain the activity of the virus sample and prolong the survival time of the virus in the sample, the sampling swab ( flocking swab ) will be put into the preservation solution ( viral transport media ) for preservation and transportation.

What is the viral transport medium used for?

pcr test

PCR test

The inactivated viral transport medium can perform protein denaturation on fresh clinical virus specimens to inactivate the virus. Prevent secondary infection and ensure the safety of transportation and testing personnel. The inactivated samples can be used with a variety of virus extraction kits.

The nucleic acid extraction instrument can quickly extract nucleic acids.

At the same time, with the respiratory pathogen PCR detection kit (VTM Kits) to achieve rapid detection. The specificity and sensitivity are not affected.

Virus preservation solution has many functions:

1. The operation is simple, and the liquid contains ingredients that can denature proteins, thereby inactivating the virus;

2. Contains inhibitors to protect the stability of viral nucleic acid to a greater extent and greatly improve the nucleic acid extraction rate;

3. Stored at room temperature for 12 months before sampling.

The airtightness is good, which is convenient for storage and transportation and saves transportation costs.

Cell medical (Dongguan) Co., Ltd.

Viral transport media include inactivated and non-inactivated viral transport media.

Contains Hank‘s Liquid, Potassium Chloride, Magnesium Chloride, Calcium Chloride, BSA, etc. The combination of various antibiotics has antibacterial and antifungal effects.  Bovine serum albumin (BSA), as a protein stabilizer, can form a protective film on the protein shell of the virus. Making it difficult to decompose and ensuring the integrity of the virus; Hank’s buffer The neutral environment constructed by the agent helps to increase the survival time and infection stability of the virus.

What is viral transport medium?

Anterior Nasal Swab VS Nasopharyngeal Swab

Nasopharyngeal Swab

Inactivated and non-inactivated virus preservation solutions: usually used for the collection and transportation of clinical influenza, avian influenza, hand, foot and mouth virus, measles and other virus specimens, as well as specimens such as mycoplasma, ureaplasma, chlamydia, etc.

1. For monitoring and sampling of infectious pathogenic microorganisms by disease control departments and clinical departments.
It is suitable for a sampling influenza virus (common influenza, highly pathogenic avian influenza, H1N1 influenza virus, etc.), hand, foot and mouth virus and other types of viruses.  
2. To transport nasopharyngeal flocked swab specimens or tissue specimens from specific parts from the sampling site to the testing laboratory for PCR extraction and detection.
3. Preserve nasopharyngeal swab samples or tissue samples from specific parts for necessary cell culture.
COVID-19: Will The Pandemic End in 2022?

COVID-19: Will The Pandemic End in 2022?

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Only one month after the US lifted the mask order, Philadelphia will usher in a mandatory mask order again.

Beginning April 18, local time, more than 1.6 million Philadelphia residents must wear masks again when entering indoor public places. Philadelphia became the first major U.S. city to impose a mask mandate as cases rose again.

On April 13, the World Health Organization (WHO) New Crown Pandemic Emergency Committee held a meeting. After discussion, it was determined that the new crown pandemic continued to constitute a “public health emergency of international concern”, and countries were advised to prepare for it at any time. Do a good job in vaccination and PCR swab testing.

nasopharyngeal swab test

nasopharyngeal swab test

WHO Director-General Tedros Adhanom Ghebreyesus said: “It’s far from the time to let our guard down.”

According to the latest data from Johns Hopkins University in the United States. The number of confirmed cases of new coronary pneumonia in the world has exceeded 500 million. And the number of deaths has exceeded 6.1 million.

Endorsed by the WHO, in other words, one in 16 people in the world will carry the covid virus.

Since December last year, Omicron has been rampant around the world, with more than 200 million new confirmed cases worldwide in 2022.

500 million, or 5 billion?

At the same time, many experts and even the WHO believe that the number of truly infected people in the world is far more than 500 million, and may even exceed 5 billion.

Not to mention India, Africa and other countries and regions with poor medical conditions, weak testing capabilities, and chaotic management, even in the United States, the CDC has previously acknowledged that the number of infections reported nationwide is estimated to be less than 1/4 of the actual number of infections.

So, can the covid-19 stop this year?

COVID-19: Will The Pandemic End in 2022?

Faced with this question, WHO spokesman Tarik Jasarevic did not respond positively, but reiterated that in order to end the acute phase of the new crown pandemic, scientists have developed an effective epidemic prevention and control response.

Viral Transport Medium With Swab

Viral Transport Medium With Swab

He also warned: “As the new crown epidemic continues to spread on a large scale around the world, the emergence of more new crown variants and recombinant variants is foreseeable.”

Tedros said that the WHO is currently closely monitoring the development of BA.2, BA.4, BA.5 and other Omicron subtype strains, as well as the recombinant XE formed by the combination of BA.1 and BA.2 evolution.

BA series and X series, how dangerous?

Although the number of new cases around the world has been declining for three consecutive weeks. There are also some countries and regions where new cases are still climbing.

Many Asian countries are experiencing the Omicron wave for the first time. In South Korea, new infections and deaths have continued to climb since February.  The country now has the world’s highest daily average of new confirmed cases for a week. According to a Reuters analysis, South Korea currently has an average of more than 182,000 new confirmed cases per day, accounting for a quarter of the world’s newly confirmed cases.

Some European and American countries have experienced a wave of Omicron infection peaks at the beginning of this year, but the epidemic has recently rebounded.

In Europe, the daily increase of confirmed cases in France has shown a slow upward trend, and the seven-day average of newly confirmed cases in Germany has declined, but it is still at a high level. Reuters pointed out that the number of new cases in Europe is still huge, with more than 1 million new confirmed cases almost every two days.

At present, BA.2 is the main circulating strain in many countries, accounting for 94% of all gene sequencing.

While BA.4 and BA.5: Found in South Africa and many European countries.

Experts believe that if more people can be vaccinated and more people have the tools to fight the epidemic, then we can reduce severe cases and further reduce infections, thereby gradually ending the pandemic.

He also emphasized that it is very important to continue swab testing while the pandemic is still ongoing so that cases can be accurately tracked.

CellMedical produce flocked swabs, VTM kits, and virus transport medium, with multiple automatic production lines(Including automatic VTM tube production line, OEM VTM Tube, Flocked Swab Production Line, etc). learn more.

 

Ethylene Oxide Covid Test

Ethylene Oxide Covid Test Sterile Swab

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EO sterilization refers to ethylene oxide sterilization.

Ethylene oxide (EO) is a highly efficient and broad-spectrum gaseous disinfectant.

It is by far the only most reliable and widely used sterilization method recognized worldwide.

The nasal sampling flocked swabs included in the COVID-19 test kits are sterilized by EO or gamma-ray sterilization.

Rest assured, the swab is safe to use. Including ethane is a gas use commonly used to sterilize different types of medical equipment, flocked swabs for test kits.

The time period for the entire process includes multiple heights and set-up phases, including post-swab removal of sterilized equipment to control ethane treatment.

Allows monitoring of residues in contact with humans (EO amount has been according to ISO 10939-7:2008) ).

Our GMP Factory Flocked Swab Ethylene Oxide Covid Test

Our GMP Factory Flocked Swab Ethylene Oxide Covid Test

Ethylene Oxide Covid Test Sterile flocked Swab Principle

What is the principle of ethylene oxide sterilization (EO sterilization)?

Ethylene oxide, also known as ethylene oxide, has the molecular formula C2H4O.

The boiling point is 10.4°C, it is soluble in water, and the explosion limit in air is 3% to 100% (volume).

Ethylene oxide is a highly volatile, explosive, flammable and toxic substance with ether smell when volatilized. It is a spectral sterilant.

Ethylene oxide can effectively kill various microorganisms, including bacterial propagules, spores, viruses and fungal spores, and is a broad-spectrum high-efficiency sterilant.

Ethylene oxide molecule can produce alkylation reaction with a carboxyl group, amino group, sulfhydryl hydrogen group and hydrogen group on gene proteins necessary for metabolism in bacterial cells.

Instead of the unstable hydrogen atoms on the above groups, form a hydroxyethyl group.

The rooting compound, because this compound destroys the necessary reactive groups in the important metabolic reactions of microorganisms, affects the action of bacterial enzymes, and causes the death of microorganisms.

Nasal swabs included in COVID-19 inspections are EO sterilized.

I heard that ethylene oxide sterilant is toxic and carcinogenic, but covid sterile swaps are all sterilized with ethylene oxide.

Is it safe for us to use a covid swab?

Is the risk of cancer caused by directly entering the respiratory tract greater?

The words “Clean and Sterile EO” on the product packaging of sterile flocked swabs. At this point there’s a crowd that’s saying “

Specimen Collection Swab Ethylene Oxide In Swabs

Specimen Collection Swab Ethylene Oxide In Swabs

It’s completely dry here.

There’s no result. But once you put it in a person’s nose, it’s wet. Once you inhale it, it’s going to kill us. It’s really killing people.”

While it’s safe to say that direct exposure to ethylene oxide is actually linked to cancer (here), that doesn’t suggest that swabs sterilized with ethylene oxide definitely cause cancer cells.

Ethylene oxide is a valuable disinfecting gas because it is very good at inactivating bacteria.

It is used in factories in a very tightly controlled method to ensure that people working in manufacturing plants are not put at risk.

It is a common chemical used to sterilize clinical tools and leave a minimal amount of product behind.

In conclusion, EO is a gas commonly used to sterilize clinical equipment such as COVID-19 nasal swab tests.

Ethylene oxide (ethylene oxide) is a highly efficient and broad-spectrum gaseous disinfectant.

It is by far the only most reliable and widely used sterilization method recognized worldwide.

Although EO is carcinogenic, the use of this gas is safely regulated and has actually been used for decades.

Sterilization procedures are regulated to ensure minimal EO residues on medical tools.

Covid Test Throat Swab

Covid Test Throat Swab

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There is more than one sampling method to detect covid-19. Everyone should have heard of the nasopharyngeal swab test and oropharyngeal swab. Can you do it yourself? Or does it have to be done by a professional for you?

In this article you will learn:

What difference is between a nasal swab and a throat swab COVID-19 test?

The main steps to take the Covid Test Throat Swab test.

Which COVID test is more accurate, nasal or throat swab?

 

What difference is between a nasal swab and a throat swab COVID-19 test?

Swab Test

Swab Test

Sampling methods and location are different.

The accuracy rates of nucleic acid detection nasal swabs and throat swabs are usually similar, and the main difference lies in the sampling method and sampling site.

For nasal swabs, nasopharyngeal flocking swabs are mainly used to test the secretions from the inside of the nasal cavity and the surface of the nasal mucosa through the nasal cavity; In contrast, throat swabs are obtained by dipping pharyngeal specimens through the oral cavity. Tests are conducted to determine if the sampler is infected with the new coronavirus.

There are several different ways to test for COVID-19:

Testing for COVID-19 falls into two main categories:

1. Diagnostic test/diagnostic test: to detect whether you are currently infected with SARS-CoV-2 virus, also called viral swab test.

2. Antibody test/antibody test: It is used to detect whether you have been infected with the SARS-CoV-2 virus, and cannot be used to diagnose whether you are currently infected.

Polymerase chain reaction (PCR) swab test

  • Nasal Swab A nasal swab is a method of examining the nasal passages to see if there is a bacterial or viral infection. The nasal swab is something similar to a sterile flocked swab, which is used for the collection of nasal specimens.
  • Throat swab, also known as “oropharyngeal swab“, refers to using a sterilized medical long cotton swab to wipe a small number of secretions from the throat of the person to be tested, and then perform respiratory virus testing. A sample is taken from the back of the throat through the mouth.
  • Nasopharyngeal swabs are actually relatively long nasopharyngeal flocked swabs, similar to longer sterilized cotton swabs.
  • Its main function is to take nasopharyngeal secretions for bacterial culture and drug sensitivity tests. Go deep into the nose and collect a sample from the back of the nose or the back of the throat.
  • Saliva swabs use a saliva sample to test for the COVID-19 virus. This is usually done by swabbing the oral area, such as the cheeks.

The rapid antigen tests that most people use in the U.S. and elsewhere are designed specifically for nasal swabs.

The main steps to take the Covid Test Throat Swab test.

Specimen collection crowd:

1. Patients with suspected pneumonia and suspected cluster cases of new coronavirus infection;

2. Others who need to be diagnosed or differentially diagnosed with new coronavirus infection;

3. Those returning to the city/returning to work without obvious symptoms (fever, respiratory symptoms) .

Before swab test sampling:

Preparation before throat swab: throat swab sampling tube (tube + swab), sealing bag with a size suitable for displaying the general biological hazard sign, tongue depressor, etc.

Check the label on the outside of the throat swab (whether there is a date, specification, whether the colour of the sampling liquid has deteriorated, whether it is turbid, whether there is sediment, etc., and also improve the information of the sampling tube, such as name, sampling unit, and paste the sampling number);

It is necessary to communicate with the examinee first, and inform the examinee in advance not to smoke, drink, or eat chewing gum or irritating or savoury food within 30 minutes before sampling.

If your test needs to try:

The swab crossed the base of the tongue and reached the pharyngeal stenosis, and quickly wiped the palatine arches and pharynx and tonsil secretions on both sides.
Drop the swab into the virus delivery medium, assist the cap to break the swab stem so that it is fully seated in the tube.
Tighten the cap of the tube, mark it well, put it in a plastic bag and seal it.
Submit the specimen for inspection in a timely manner.

Which COVID test is more accurate, nasal or throat swab?

Research is underway to determine the most accurate way to test for COVID-19, specifically using the Omicron variant. We do know that Omicron tends to stay in the upper airways rather than travel to the lower airways or lungs. Therefore, a throat swab may be more likely to find it. But again, research is still ongoing.

A recently published study suggests that saliva swabs may be more accurate in detecting Omicron variants than nasal swabs. But the study looked at PCR tests, not at-home rapid tests. So the results may not apply to home tests because these tests work differently. Another study found that PCR throat swabs were slightly better at detecting the virus than nasal swabs. But this research was done before the Omicron variant.

It is also important to note that throat swabs are more difficult to collect. If done incorrectly, the results may be inaccurate. At this point, it is best to wait until we have more data and leave the throat swab to the provider.

Notice

For the Omicron variant, a saliva test (and possibly a throat swab) may be more accurate than a nasal swab. But current rapid home tests are not designed for throat swabs. To avoid potentially false results, these tests should only be used as intended. Until we do more research, we can’t say for sure whether combining swabs with home testing is a good idea. When in doubt, consider a PCR test for more accurate results.

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.

 
DNA Specimen Nylon Fiber Flock Dacron Sample Collection Flocked Swab

DNA Specimen Nylon Fiber Flock Dacron Sample Collection Flocked Swab

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During the outbreak of the new coronavirus pneumonia, while everyone is doing personal protection, they are also very concerned about the epidemic situation.

Originally, the social season in winter and spring was a period of the high incidence of common colds and flu, and the most important means to control the epidemic was to screen out the real patients with new coronary pneumonia from many respiratory patients.

The following small series will introduce some common virus sampling detection methods for you.

Nasopharyngeal swab

Collect nasopharyngeal swab specimens within 3 days of the onset of the patient as much as possible.

Measure the distance from the tip of the nose to the earlobe with a swab and mark it with your finger, insert the swab into the nasal cavity in the direction perpendicular to the nose (face), and the swab should be at least half the length from the earlobe to the tip of the nose so that the swab stays in the nose for 15 ~30 s.

Gently rotate 3 to 5 times, quickly put the swab into a sample collection tube containing 2 ml of lysis buffer (the same as the lysis buffer in the nucleic acid extraction kit) or a cell preservation solution containing RNase inhibitors, and insert the swab.

Then break the sterile swab rod near the top, screw the cap tightly and seal it with parafilm.

Oropharyngeal swab

Collect throat swab specimens from patients within 3 days of onset as much as possible. It is advisable to use a sterile flocked swab for sampling, wiping the posterior pharyngeal wall with moderate force, avoiding touching the tongue; quickly put the sterile swab into the collection tube used for collecting nasopharyngeal swabs, and break it near the top Sterile swab rod, screw cap tightly and seal with parafilm.

Anal swab (feces)

For patients with gastrointestinal symptoms such as diarrhea in the early stage of the disease, an anal swab should collect a stool sample (soybean size) of 3-5g.

The specimens were collected in a screw-cap specimen collection tube containing 2 ml of normal saline (RNase inhibitor can be added if available) and sealed with parafilm.

How to collect nasopharyngeal swabs

There is absolutely no need for the sampler to stand directly opposite the patient. Regardless of whether the patient is sitting or lying, right-handed patients can stand on the right side of the patient, and left-handed patients can stand on the left side for sampling operations.

The advantage of standing on the side is that if the patient has a cough, sneeze, etc., it can be avoided in time.

After the nasopharyngeal swab is passed through the nostrils.

It is perpendicular to the coronal plane of the head or the face and penetrates deep from the inferior meatus to the posterior wall of the nasopharynx, and it is enough to feel the wall.

The nasopharyngeal swab enters the nasal cavity to a depth of approximately the distance from the tip of the nose to the earlobe (see figure).

The “American Society for Microbiology Clinical Microbiological Specimen Submission Guidelines. ” We ask to twist the nasopharyngeal swab on the nasopharyngeal mucosa, hold it for 10-15 seconds, and then take out. Children’s cooperation is poor.

We generally take out the Flocked swab in three to five seconds after fully twisting it 2-3 times.

Except for paying attention to the depth of the swab. We should also note that there is always the habit of having the patient lift their head completely, bend the swab, and take a sample. This is wrong.

In fact, the above approach is wrong. This operation will cause the swab head to stay in an incorrect position. And the final sample obtained is not a standard nasopharyngeal swab specimen.

 

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.


															

		
		
	





	
		



	
	


		
		

							

					Covid Sampling Flocked Swab
				

			
			
Covid Sampling Flocked Swab


							

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Covid Sampling Flocked Swab


Flocked refers to the process of applying multiple lengths of fibers to the surface of the adhesive coating.


It is basically the same as the cotton swab except for the material.


It can also be said that the flocking adheres to the head of the flocked swab. It is a flocking swab, but it is different from cotton swabs in that it is a disposable sampling swab composed of nylon short fiber fluff head + ABS plastic rod.








Flocked tip
Handle dimension(mm)





Items
Cat.No.
Diameter

±0.5		
Length

±3		
Diameter1

±0.1		
Diameter2

±0.1		
Molded

Breakpoint

Length from tip		
Overall

length

±0.1		
Packing




Nasal swab flocked tip 
CM-96000
3
20
1
2.5
90
151
100PCS/BAG,

50BAG/CTN		




Throat swab flocked tip
CM-93050
5
16
　2.5
2.5
80
152
100PCS/BAG,

50BAG/CTN		






(1) Swabs using spray densely planted nylon fiber technology.


(2) According to different analysis items, there are soft or brush texture swabs, which have reached the maximum collection volume.


(3) Disposable aseptic injection swab rod with breaking point.


(4) Flocked swab technology improves the adsorption of specimens portion of the tube for trouble-free transport.

															

		
		
	





	
		



	
	


		
		

							

					Do a good Virus Swab Test,Epidemic is not over yet
				

			
			
Do a good Virus Swab Test,Epidemic is not over yet


							

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Do a good Virus Swab Test, Epidemic is not over yet.


Winter has arrived, affected by the new crown pneumonia epidemic in Europe. Such as Cuba, the Netherlands, Germany, the United Kingdom, etc., the epidemic is continuing. More and more European countries have recently stopped restarting and tightening anti-epidemic measures. After the outbreak, European experience proved that: “Dynamic zero adjustment has been mastered” . “continuous changes in temperature rise have been controlled.” Advantages and captures “return to zero” and “constantly switch between limiting adjustments”.


COVID-19 mutant virus Omi Kiron strain has spread to all provinces in South Africa.


South African President Ramaphosa said on the 28th that in the next few weeks.


There may be a fourth wave of new crown epidemics in South Africa.


And the public should do a new crown virus sampling swab test as soon as possible and get the new crown vaccine.

In the evening, Ramafosa said in a televised speech that in the past 7 days.


The number of confirmed cases of the new crown in South Africa has risen to an average of 1,600 per day, while the positive rate of new crown virus testing in South Africa has risen from approximately 2% to 9% in the previous week.


If the newly emerging confirmed cases continue to rise, South Africa may enter the fourth wave in the next few weeks.

Lamafosa said that the recently emerged mutated virus, Omi Keron virus, has spread to all provinces in South Africa.


At present, immunization is still the most important means of protecting oneself and others.


The emergence of the Omi Keron virus has sounded a wake-up call for the whole world.


Several countries, including South Africa, have recently reported confirmed cases of Ome Keron, and the World Health Organization listed the virus as a “variety of concern” on the 26th.


Nasopharyngeal swab for covid


Do a good Virus Swab Test,Epidemic is not over yet
Do a good Virus Swab Test, Epidemic is not over yet


About the European epidemic


European experts believe that the recent occurrence of the “epicenter” of the global epidemic in Europe is related to factors such as disease awareness, premature “unblocking”, and insufficient vaccines. The most critical factor-the effect of excessive pendulum movement, which swings from side to side at a strict angle. We must do a good job in the swap test of the COVID-19.


Herd immunity？


Doing a good job of a virus swab test, testing and vaccination is the top priority.


At the beginning of the disease outbreak, Patrick Valence, the chief scientific adviser of the United Kingdom, put forward the theory of “herd immunity”. Now in the world, the EU has completed 7% of the population protection range of about 6%, and still cannot solve the fourth wave of epidemics.


The proliferation of medical resources film festivals appeared. The incidence is higher in the northern region. 79% of people abroad have received local injections. The number of the above cases has reached 9.8 million, and the proportion of the British population is 14.6%. New highs since the beginning of winter, the peaks of the virus wall in various states have taken turns, and no emergencies have occurred. The theory of “in the iron face, group immunity” has broken down.


“Coexisting with the Virus” Nonsense.


Mistakes in the fight against the virus continue to disrupt growth and even increase risks. From the beginning of the new century, the “labor shortage” and supply chain crisis in many countries can end this. Over the past year or so, Europe has had to return and fall in the policy choices of “severe cold and epidemic prevention” and “economic recovery”. The vicious circle of “high control-unraveling-epidemic rebound-re-management”.


However, as the life expectancy of relevant countries or regions has dropped significantly, the problems that gradually emerge after the outbreak of the disease will have a more severe and instantaneous impact.

It has achieved great success by adhering to the goal of zero-clearing the epidemic. Even eager to announce “coexistence with the virus”, trying to adopt a third response method under the situation of repeated zero-sum dynamics.

But, there will be such a road there? The result of choosing to “coexist with the virus” at this stage is nothing more than harming more people’s lives.


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					The flocked swab deposits nylon fibers on the surface of the medical ABS rod in order in a certain direction through the electrostatic field to form a brush layer.
				

			
			
Flocked Swabs for Sample Collection


							

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Flocked swabs for sample collection


The flocked swab deposits nylon fibers on the surface of the medical ABS rod in order in a certain direction through the electrostatic field to form a brush layer. The layers are fully parallel and perpendicular to the surface of the internal rod.


The brush head can be used for Virus cell collection.


It can be used for sampling the natural cavities of the human body such as oral cavity, nasopharynx and laboratory detection.


flocked swabs for sample collection
flocked swabs for sample collection


Why flocked swabs?


The flocking swab deposits nylon fibers on the surface of the medical ABS rod in order in a certain direction through the electrostatic field to form a brush layer. The layers are fully parallel and perpendicular to the surface of the internal rod. The brush head can be used for DNA collection. It can be used for sampling the natural cavities of the human body such as oral cavity, nasopharynx and laboratory detection.


So that there is no absorption hole in the sampling area of the whole sampling swab.


And the sampling sample will not be dispersed and retained in the fiber, which is conducive to faster and more efficient elution.


Traditional cotton swabs can not completely collect and elute samples, while flocking swabs can elute 95% of samples.


Therefore, the use of flocking swabs has great advantages for various sample collection applications.


Nasopharyngeal flocked swab;


Flocked swabs have some advantages;


1. Sampling is comfortable and easy to use;


Flocking swabs now basically use “spray technology”, which vertically attaches millions of nylon fibers to the head of medical ABS swab rod through the flocking process of electrostatic charge.


The function of the vertical nylon fiber is similar to that of a soft brush. The use of this soft brush in the sampling process makes the user feel free of foreign objects. At the same time, the flocking swabs used in different parts adopt different breaking points, and the rod adopts different thickness to make the softness different.


For example, the nose swab is thinner and softer at the upper end of the rod, and the breaking point is longer, which fully conforms to ergonomics.


2. Flocked swab samples release more;


The capillary action between nylon fiber bundles promotes the strong hydraulic absorption of liquid samples. The sample is kept on the surface to make elution easier. It is much larger than the traditional winding cotton swab. The experimental research shows that the collection and release of flocking swab can reach 95% of the sample, while the cotton swab is only about 20%.


Because most of the samples collected by the cotton swab are easy to be intercepted in the fiber matrix layer of the head during release, it is not easy to release or release a small amount.


3. Flocking swab has biocompatibility and is an ideal choice for PCR;


In order to limit the damage to the sample and improve the accuracy of detection, while the flocking swab is PCR compatible and does not contain RNase and DNase.


Operation method of flocked nylon swab:


Take the sampling method of oropharyngeal swab as an example;


1. First, ask the patient to sit down, then let the patient tilt his head back, open his mouth, and make an “ah ~” sound.


2. The sampler fixed the patient’s tongue with a tongue depressor, and used a flocking swab to cross the root of the tongue to the posterior pharyngeal wall, tonsil recess, lateral wall, etc.


3. Wipe repeatedly for 3 ~ 5 times to collect mucosal cells.


4. Slowly take the swab out of the mouth, vertically put it into the virus preservation solution, break the tail of the swab, and tighten the sampling tube to avoid leakage.


5. Send to the laboratory for testing as soon as possible.


Swab flocked matters needing attention:


1. The swab shall be placed vertically in the sampling tube, and shall not be wiped to the bottle mouth to avoid pollution.Viral Transport Medium.flocked swab copan.


2. It is best to send it or send it to the laboratory for inspection on the day of sampling.


3. Before submission for examination, it must be verified that the specimen is consistent with the submission form. The appearance of the sampling tube must clearly write the patient’s name and basic information.


4. The submitted samples must submit (or submit the electronic version in advance) screening information form, inspection form and other materials.