Serosurvey Finds 70 Per Cent in Tamil Nadu Have Anti-bodies Against Covid-19

In the earlier state-wide sero-surveys conducted by the department in October-November 2020, the sero-positivity was at 32 per cent while in March-April 2021 it was 29 per cent.

from Top India News- News18.com https://ift.tt/2WPu0WM