1 in 3 exposed to Covid: 2nd Chennai sero survey

One in three people in Chennai has been exposed to SARS-CoV-2, the virus that causes Covid-19, according to the second sero-prevalence survey done in the city in October. The first survey in June showed one-fifth of the city was exposed to the virus.

from Chennai News: Latest Chennai News Headlines & Coronavirus News Updates from Chennai - Times of India https://ift.tt/3dNwWat