Vox: My patient caught Covid-19 twice. So long to herd immunity hopes.

Vox: My patient caught Covid-19 twice. So long to herd immunity hopes.. “‘Wait. I can catch Covid twice?’ my 50-year-old patient asked in disbelief. It was the beginning of July, and he had just tested positive for SARS-CoV-2, the virus that causes Covid-19, for a second time — three months after a previous infection. While there’s still much we don’t understand about immunity to this new illness, a small but growing number of cases like his suggest the answer is ‘yes.'”