A new type of coronavirus diagnostic test designed for rapid detection.
The COVID-19 Antigen Test detects the novel coronavirus N protein antigen, which can be detected in the early stage of viral infection and can be used as direct evidence of viral infection. It can be used as an auxiliary diagnostic index in clinical practice.
The Antibody Test checks your blood by looking for antibodies, which may tell you if you had a past infection with the virus that causes COVID-19. (Antibodies are proteins that help fight off infections and can provide protection against getting that disease again (immunity). Antibodies are disease specific.)View Details
An accurate test is both sensitive and specific. A sensitive test gives a positive result for a high proportion of people who are infected, so gives a low number of false negative results. A specific test gives a negative result for a high proportion of people who are not infected, so gives a low number of false positive results.
The coronavirus can be detected in swabs taken from the nose or throat, even before symptoms of illness first appear. This is why people can be infectious for a few days before the onset of symptoms, which usually appear about 5 days after the virus infects.
Some people have no symptoms throughout their infection but are positive on the virus test and infectious to others. After a few days of illness the concentration of the virus falls (as seen in swab samples) and the symptoms of the illness usually recede, while the level of antibodies in the blood goes up. An Antibody Test may not show if you have a current COVID-19 infection because it can take 1–3 weeks after infection for your body to make antibodies. To see if you are currently infected, you need a viral test(RT-PCR/Antigen Test). Viral tests identify the virus in samples from your respiratory system, such as a swab from the inside of your nose.
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