That means 50% of us need to get COVID-19 before “herd immunity” kicks in.
To achieve 'herd immunity' against a virus, at least 50% of the population has to be immune. Experts say the US is nowhere near achieving herd immunity for the coronavirus pic.twitter.com/jFkKN4egY8
— China Xinhua News (@XHNews) April 17, 2020
Current death rate of COVID-19 in the US: 5.1%
Pop. of US: 328.2 million
50 % of US population: 164.1 million
5.1% of 164.1 million: 8,369,100 people.