Coronavirus infection leads to immunity that’s comparable to vaccine

One of the enduring questions of the COVID-19 pandemic is how much immunity people are left with after recovering from a coronavirus infection. New research suggests the level of protection is comparable to getting a vaccine — at least for a few months.

Among a group of hundreds of thousands of Americans who tested positive for a SARS-CoV-2 infection, the risk of developing a subsequent infection more than three months later was about 90% lower than for people who had not been previously infected and therefore had no immunity to the virus, according