Why could COVID-19 be detected only by PCR?
This is because Covid 19 infection has RNA which can be only detected in PCR.
Last updated on 27 Apr 2023
A PCR test can be inconclusive if the sample given is not enough or the person is close to recovery or has an early infection. In this case, one needs to wait for 48 hours and give the sample again for assesment.
A PCR test for COVID-19 is a test used to diagnose people infected with SARS-CoV-2, the virus that causes COVID-19. It has no side effects.
Chances are very rare that a PCR test can go wrong
WHO, CDC and NHS
They are quite accurate
Covid 19 RTPCR, SARS- CoV-2
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