Covid-19: Stealthy virus beating RT-PCR tests, find docs

The novel coronavirus variant that is causing the current wave of Covid-19 is not just highly infectious but also stealthy. City hospitals say they are getting cases where a patient has typical symptoms of the disease but tests negative for the viral infection, sometimes twice or thrice even through RT-PCR which is considered the gold standard for Covid testing.

from News-Economic Times https://ift.tt/325OnOC