COVID Antibody Test kits Neutraliazing AB Rapid Test

COVID Antibody Test kits Neutraliazing AB Rapid Test  Why Need Test Neutralizing Antibodies? A few days or a week after the patient is infected with the new virus, antiviral antibodies will be produced, among which neutralizing antibodies have the characteristics of antiviral content. Although neutralizing antibodies account for only a small part of the weight of anti-viral antibodies, they can recognize virus surface proteins and prevent the virus from combining with the cell surface alone, thereby preventing the virus from restarting the cell Features for COVID Antibody Test kits Neutraliazing AB Rapid Test  A. Blood test, finger whole blood is feasible. B. Cut-off value is 50ng/mL Simple operation, no additional materials are required to run the analysis D. Small specimens are required. Serum, plasma 10ul or whole blood 20ul is enough. Authorized certifications for Neutralizing AB Antibodies rapid test CE Approved China's white list approved Neutralizing Antibody Rapid Test
Test Procedure   Allow the test device, specimen, buffer, and/or controls to equilibrate to room temperature (15-30°C) prior to testing. 1. Bring the pouch to room temperature before opening. Remove the test device from the sealed pouch and use it as soon as possible. 2. Place the test device on a clean and horizontal surface. For Serum or Plasma Specimens: Hold the dropper vertically, draw the specimen up to the Fill Line (approximately 10 μL), and transfer the specimen to the specimen well (S) of the test device, then add 3 drops of buffer (approximately 90 μL) and start the timer . See illustration below. Avoid trapping air bubbles in the specimen well (S). For Whole Blood (Venipuncture/Fingerstick) Specimens: To use a dropper: Hold the dropper vertically, draw the specimen 0.5-1 cm above the Fill Line, and transfer 2 drops of whole blood (approximately 20 μL) to the specimen well (S) of the test device, then add 3 drops of buffer (approximately 90 uL) and start the timer. See illustration below. Reader of Result -Positive (+): Only C line appears, or T line is equal to C line or weaker than C line. It indicates that there are neutralizing antibodies in the specimen. -Negative (-): Both the T line and C line appear, when the intensity of T line is stronger than C line. It indicates that there is no neutralizing antibodies in the specimen, or else the titer of neutralizing antibodies are of very low level. -Invalid: Control line fails to appear. Insufficient specimen volume or incorrect procedural techniques are the most likely reasons for control line failure. Review the procedure and repeat the test with a new test. If the problem persists, discontinue using the test kit immediately and contact your local distributor. Expected Results For Vac Reference. The results if carrying vac are expected to be like below. -Before first dose: Negative by rapid test The results if carrying 19 vac are expected to be like below. -Before first dose: Negative by rapid tes 3 weeks after first dose: weak or middle positive -1 week after second dose: middle or high positive -2 weeks after second dose: middle or high positive Quality control Internal program control is included in the test. The colored lines appearing in the control area (C) are internal program control. It confirms sufficient specimen volume and correct procedure technique. This kit does not provide control standards; however, it is recommended that positive and negative controls be tested as a good laboratory procedure to confirm the test procedure and verify proper test performance. Performance characteristics Relative Sensitivity, Specificity and Accuracy The SARS-CoV-2 Neutralizing Antibody Rapid Test (COVID-19 Ab) has been evaluated with specimens obtained from a population of positive and negative specimen. Results were confirmed by a commercial SARS-CoV-2 Neutralization Antibody Detection Kit (ELISA kit, cutoff 30% signal inhibition).
Method A commercial SARS-CoV-2 Neutralization Antibody Detection Kit (ELISA kit) Total Results
SARS-CoV-2 Neutralizing Antibody Rapid Test (COVID-19 Ab) Results Positive Negative
Positive 32 0 32
Negative 1 167 168
Total Result 33 167 200
Relative Sensitivity: 96.97%95%CI83.35%99.99%)   Relative Specificity: 100.00%95%CI97.29%100.00% Accuracy: 99.50%95%CI96.94%99.99%   FAQ Question 1: Can I get samples before play batch order? A: Qulaified sample is available, details please contact with our sales. Question 2: How about the MOQ? A: MOQ is more than "0", but our sales team will advise you how much to order based on the products you need, national market conditions, international logistics costs and other factors Question 3: How about the quality? A: We already get CE, and also on the white list of Chinese goverment, furthermore, you can find our test result result on the wesite of German Ministry of Health Question 4: Where is your factory? Can I visit your factory? A: We are in Hangzhou, Alibaba also located in here, half an hour from Shanghai by high speed train. You are welcomed anytime that you visit us. Question 5: Do you factory or trading company A: We are factory, all product we supply is R&D and produce by ourself. Question 6: How can I pay? A: You can pay USD, EURO & RMB via T/T, PayPal or Western Union. Question 7: Which certificate you have: A: CE/ISO13485