#antibodytest #rapidtest #iybt
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Disclaimer:
IYBT is not a substitute for your Doctor consultation. Blood work only acts as a supportive workup to your physical examination and always needs to correlated by a professional doctor before taking any step in the management. Hence, seeking the advice of a professional doctor in the related field is adviced for questions related to you symptoms , diagnosis and management.
If you have or suspect that you have a medical problem or condition, please contact a qualified health care professional immediately. You should never disregard or post pone the medical advice given by your doctor just because you have seen or read the content in the channel
Reference :
Developing antibody tests for SARS-CoV-2 - The Lancet by A Petherick - 2020
[ Ссылка ]30788-1/fulltext
Testing strategy -ICMR
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Ministry of Health and Family Welfare :
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Video describes about rapid corona virus tests
A total of three detection lines are possible, with the control (C) line appearing when sample has been flowed through the cassette.
1 | Negative Result: If only the quality control line (C) appears and the detection lines G and M are not visible, then no novel coronavirus antibody has been detected and the result is negative.
2 | Positive Result, M only: If both the quality control line (C) and the detection line M appears, then the novel coronavirus IgM antibody has been detected and the result is positive for the IgM antibody.
3 | Positive Result, G only: If both the quality control line (C) and the detection line G appears, then the novel coronavirus IgG antibody has been detected and the result is positive for the IgG antibody.
4 | Positive Result, G and M: If the quality control line (C) and both detection lines G and M appear, then the novel coronavirus IgG and IgM antibodies have been detected and the result is positive for both the IgG and IgM antibodies.
In order to test the detection sensitivity and specificity of the COVID-19 IgG-IgM combined antibody test, blood samples were collected from COVID-19 patients from multiple hospitals and Chinese CDC laboratories. The tests were done separately at each site. A total of 525 cases were tested: 397 (positive) clinically confirmed (including PCR test) SARS-CoV-2-infected patients and 128 non- SARS-CoV-2-infected patients (128 negative). The testing results of vein blood without viral inactivation were summarized in the Table 1. Of the 397 blood sample from SARS-CoV-2-infected patients, 352 tested positive, resulting in a sensitivity of 88.66%. Twelve of the blood samples from the 128 non-SARS-CoV-2 infection patients tested positive, generating a specificity of 90.63%.
