Noun
herd immunity (countable and uncountable, plural herd immunities)
(epidemiology) The indirect protection against the spread of a contagious disease in a given population caused by the immunity of a significant proportion of the population to that particular disease; the immunity may have been obtained through having survived the infection or through vaccination. [from early 20th c.]
We need 70% entire population to get herd immunity. Not just adult population. Virus doesn't check your Adhaar card. It maybe more than 70% even as the vaccines we've used have lower overall efficacy than mRNA vaccines. Define the problem properly to solve it. Chetan Bhagat
Herd immunity conversations too often center on letting enough people get infected and not waiting for a safe, effective vaccine. Source: Internet
Herd immunity is a fact about most of the infectious diseases. Source: Internet
Herd immunity is a term applied to the use of vaccines. Source: Internet
Herd immunity isn't a strategy, it is what happens when you do nothing and the population eventually stops dying because there aren't many left. Source: Internet
Herd immunity is the point at which a large enough percentage of the population is immune to a disease that new cases are not likely to spread to others. Source: Internet