Herd immunity is achieved when the majority of population becomes immune to an infectious disease, either because they have become infected and recovered, or through vaccination NEW DELHI : Banking on developing herd immunity to fight coronavirus is “too large a risk" for any nation and only timely interventions can mitigate the spread of COVID-19, Director General of the Council of Scientific and Industrial Research (CSIR) Shekhar Mande said.
Herd immunity is achieved when the majority of population becomes immune to an infectious disease, either because they have become infected and recovered, or through vaccination.