When the epidemic is waiting for an opportunity again, to quickly control the spread of the virus, nucleic acid testing has become the only way to go, and it has also attracted attention from all walks of life. However, there are many factors that affect the results of nucleic acid testing, including sample collection location, collection method, storage and transportation process, nucleic acid extraction operation, and so on. Among them, the stability of the sample is a key link. How to quickly inactivate the virus and protect the viral nucleic acid from being degraded, maintaining the stability of the virus sample storage solution has become a top priority.
Step 1: Break the shell and eliminate the "combat power"
Like other RNA viruses, the results of the new coronavirus are simply composed of a protein shell wrapped in single-stranded nucleic acid-RNA. We can simply think of the RNA of the virus as the "brain" that gives orders, and the protein is the "limbs" that execute orders. The new coronavirus infects the human body and reproduces and causes symptoms. This process is mainly completed by the biologically active protein structure outside the virus.
The inactivated virus preservation solution is mainly the virus modified by the nucleic acid extraction lysis solution; it is a powerful protein denaturant that can quickly dissolve the protein and cause the virus structure to be broken. When the clinical sample with the new coronavirus is mixed with the preservation solution, the virus in the sample is affected by the lysis solution, and the protein shell is quickly destroyed, and this damage is irreversible. At this time, the virus has lost its evil "minions" and no longer has the ability to infect people, thus ensuring the safety of contacts during sample transportation and processing.
Step 2: Inhibit enzyme activity and escort the "ID card"
After the shell is lysed, the RNA of the new coronavirus is free in the preservation solution. As a single-stranded macromolecule, the stability of RNA is not as immobile as double-stranded DNA. The RNase that exists everywhere in the natural environment is the culprit that causes RNA to hydrolyze and break. Therefore, it is generally considered that the viral RNA that has lost its outer shell protection is
In addition to the inactivated virus storage solution, the virus preservation solution produced by Desheng also has a non-inactivated virus storage solution. It retains the protein coat of the virus and the viral nucleic acid DNA or RNA at the same time, so that the virus has the integrity of the protein epitope and nucleic acid in vitro. Of course, there is a certain risk of infectivity when operating errors. Long-term storage after sampling needs to keep strictly low temperature. Regardless of the virus preservation solution, we need to strictly operate, store or transport in accordance with the requirements when using it.
COVID-19 Rapid Test Kit IgG + IgM (Colloidal Gold) comes in packs of 40 tests and contains: GCMS manufactures COVID-19 antigen test kit, the GENEDIA W COVID-19 Ag which is listed on the EU common list, also with GMP and ISO certifications. GENEDIA W COVID-19 Ag is unaffected based on the in-silicon analysis of the mutations in the nucleocapsid (N gene) of Omicron viruses. Letter of statement is available upon your request. To get over COVID-19 pandemic, especially the recent Omicron breakout, currently we are doing big promotions for three kinds of COVID-19 Ag kit. All are in stock and available right away. 1. Nasopharyngeal 2. Nasal 3. Saliva Price and Minumum Quantity Price FOB in USD: negotiable 0.8 to 1.8Minimum Order Qty: None Pieces Production Capacity: 3,000,000/monthPackaging: 20 Tests/kit, 30 Kits/box, 12 Boxes/pallet Sample: Available. Sample Cost Born By Supplier Product Model And Origin Brand: GENEDIAModel: 643G-S (Saliva) Seller Code: Genedia w covid 19 agHS Code: 3002.15 Standards: Ce Competitive Advantages Allow wider testing with fast test time (10 minutes) All necessary materials provided / no equipment needed Sensitivity: 93.33%, specificity: 100% Free sample. no moq. price is negotiable. customized packing. Other Details 20 tests / kit 24 months from the date of manufacture 2 ~ 30c(35.6 ~ 86f) available for room temperature deliver In stock. fast delivery. 1 x Instructions for Use Manual 40 x Test Cassettes 1 x Buffer 40 x Dropper
Angiten-COVID-19 Virus Test Kit (Colloidal Gold) Quantity of box: 25 persons/box Brand: Easysweet NMPA (National Medical Products Administration): Approved CE: with CE mark BfArM: listed Test Method: Antigen Test Result Time: 10-15 mins Sample Type: Nasal Swab Sensitivity: 96.70% Specificity: 100% Accuracy: 98.94% Shelf Life: 24 months Storage Temperature: 2-30 Degree Celsius Country of Origin: Made in China Additional Information: Production Capacity: 1 million Delivery Time: 10-15 days Packaging Details: 25 tests in a pack, 40packs/ carton Angiten-COVID-19 Virus Test Kit is an in vitro diagnostic rapid test for the qualitative detection of SARS-CoV-2 antigen (Ag) in human nasopharyngeal swab specimens from individuals who meet COVID-19clinical and / or epidemiological criteria. It can be used by professional only. Price and Minumum Quantity Price FOB in USD: NegotiableMinimum Order Qty: 10000 Production Capacity: 1000000Packaging: 25 Persons/box Sample: Available. Sample Cost Born By Buyer Product Model And Origin Brand: Easysweet HS Code: 3822009020 Standards: Ce Competitive Advantages Best price with shortest delivery time Best price with shortest delivery time Best price with shortest delivery time Best price with shortest delivery time Other Details Angiten-covid-19 virus test kit (colloidal gold) Angiten-covid-19 virus test kit (colloidal gold) Angiten-covid-19 virus test kit (colloidal gold) Angiten-covid-19 virus test kit (colloidal gold)
Covd-19 IgG/IgM Rapid Test Cassette (Whole Blood/Serum/Plasma) is a solid phase immunochromatographic assay for the rapid, qualitative and dierential detection of IgG and IgM antibodies to 2019 Novel Corona Virus in human whole blood, serum or plasma. Specification.jpg Product: Rapid Diagnostic Test Kit Item: Corona Virus Test Kit Specimen: Whole Blood/Serum/Plasma Format: Strip/Cassette Port of Loading: Shanghai OEM and ODM: OEM/ODM Welcome Shipping: By UPS, FEDEX, DHL, TNT, by air or by sea MOQ for Private label: Low MOQ 1600 boxes, Please contact us. Note: Store this product in a cool and dry place, avoid direct sunlight, stay away from places that children can contact, and avoid eye contact. If you have allergies to this product, please stop using and consult a doctor. COVID-19 Corona Virus Rapid Test Kit11.pngCOVID-19 Corona Virus Rapid Test Kit12.png
Access Bio Care Start Covid-19 Rapid Antigen Test Kit Product Details: Number of Reactions(Preps) per Kit : 1 Brand : Access Bio Test Method : Antigen Test Result Time (Rapid Kits) : 10 min Sample Type ; Nasal Swab Packaging Size : 20 Test Kits/Box Packaging Type : Box The CareStart COVID-19 Antigen test is a lateral flow immunochromatographic assay intended for the qualitative detection of the nucleocapsid protein antigen from SARS-CoV-2 in nasopharyngeal or anterior nasal swab specimens directly collected from individuals who are either suspected of COVID-19 by their healthcare provider within first five days of symptom onset, or from individuals without symptoms or other epidemiological reasons to suspect COVID-19 when tested twice over two or three days with at least 24 hours and no more than 48 hours between
Covid -19 Test Kit (Colloidal Gold Method) For Self-testing Use (Nasal Swab) Top 10 In China Having Ce Mark For Rapid Covid - 19 Antigen Self-test Precise Rapid Sensitive For At-home Testing For Early Detection Able To Sell Across All Eu Member States
We supply various brands of Antigen Saliva and Nose test kit
FAST: Results in under 2 minutes ACCURATE: 99.9% specificity and 98.7% sensitivity EASY TO USE: Convenient for testing at home PAINLESS: Simple and painless saliva collection RELIABLE: 24-Hour RT-PCR Confirmation (100% specific and 100% sensitive) 99.9% specificity. Test specificity this high ensures that almost all the people who are not infected get a negative test result with the Sensiva React Rapid Covid-19 Testing Kit. Using a fast and accurate test such as this one is vital when we are trying to stop virus transmission and protect general health. 98.7% sensitivity Test sensitivity refers to the percentage of infected people who get a positive test result. In our case that means that 98.7% of people with an infection get a positive test result. How to use it? Step 1 â?? Do the test Sensiva React Rapid Test is a simple test that can be� easily done at home. It is convenient and� painless� since it requires you to collect a saliva sample instead of a nasal swab. How to do it? First, use the mobile application to scan the QR code to register. After that, collect a saliva sample and add it into the saliva hole in the reader device before adding the liquid solution. You will be able to interpret your� results in under 2 minutes. Watch a video with detailed instructions on how to do the test in the video below. Please follow the instructions carefully to obtain a valid test result. Step 2 â?? Get RT-PCR confirmation in 24 hours You can use the prepaid shipping label and send the saliva sample used for the rapid test to us. You will get an official PCR result (100% sensitivity and 100% specificity) in 24 hours. Our lab is certified under the Clinical Laboratory Improvement Amendments (CLIA), so you can rely on us to provide you with accurate and reliable test results. Who is Sensiva React Rapid Covid-19 Test for? Sensiva React Rapid Covid-19 Test is designed for patients with COVID-19 symptoms or those who are asymptomatic but suspected of having exposure. Its easy-to-follow instructions make it convenient for testing at home. The kit contains: (1) Specimen Tube (1) Saliva Funnel (1) Dropper (1) Bio-hazard bag with absorbent pad (1) Lateral flow device (1) 5ml EZ-Tear Saline Solution (1) 0.3ml EZ-Tear Buffer Solution (1) Written Instruction Card
Offering Safecare3 Covid 19 antigen + A+B flue, 1:3 combo tests, single packed, self testing, 2 years self time from my warehouse in Vilnius, Lithuania.
Application Suspected case test in epidemic area Early test of fever clinic and CDC Screening of primary medical institutions Inspection of floating population in public areas Performance Characterisitics Sample tyep: nasal swab Time to result: 15-20 minutes Sensitivity: 97.70% Specificity: 99.84% Accuracy:98.97% Layperson study statistics 99.84% of non-professionals carried out the test without requiring assistance 99.82% of different types of results were interpreted correctly. Parameters: A Short Test Time: 15 mintues B Accuracy: More than 98.1% C Sensitivity: 96.4% Specificity: 100% D Easy operation: Nasal Swab E One Step solution F Lower cost with high efficiency G Package: 1 Test/Kit, 5 Tests/Kit, 25 Tests/Kit H It can detection for Omicron Virus Price and Minumum Quantity Price FOB in USD: 1.5Minimum Order Qty: 500000 Pieces Production Capacity: 100 Million Boxes Per WeekPackaging: 1,5,20,25,40,100,200 Pcs Per Box Sample: Available. Sample Cost Born By Buyer Product Model And Origin Brand: jwfModel: jwf01 Seller Code: Jwf Standards: Ce Competitive Advantages Lower cost with high efficiency Detection for omicron virus Easy operation Short test time Other Details Omicron covid test kit Covid test kit Omicron test card Covid test card
