Some coronavirus patients are still testing positive after recovering

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8. Links for 60% and 70%

For mumps, you need 92 percent of the population to be immune for the disease to stop spreading entirely. This is what's known as the herd immunity threshold. COVID-19 is, fortunately, much less infectious than mumps, with an estimated R0 of roughly 3.

With this number, the proportion of people who need to be infected is lower but still high, sitting at around 70 percent of the entire population.

https://www.sciencealert.com/why-herd-immunity-will-not-save-us-from-the-covid-19-pandemic]

Research so far suggests that the coronavirus has a lower infection rate than measles, with each infected person passing it on to two or three new people, on average. This means that herd immunity should be achieved when around 60 percent of the population becomes immune to COVID-19.

https://www.nationalgeographic.com/science/2020/03/uk-backed-off-on-herd-immunity-to-beat-coronavirus-we-need-it/]