Natural immunity after Covid-19 could last at least 5 months – Vox.com
For the nearly 100 million people around the world who’ve been infected with the coronavirus, new science offers some comfort: Reinfections appear to be rare, and you may be protected from Covid-19 for at least five months.
The study, the largest of its kind, followed more than 20,000 health workers in the UK, regularly testing them for infection and antibodies. Between June and November, the researchers — from Public Health England (PHE) — found 44 potential reinfections out of the 6,614 participants who had tested positive for antibodies or had a previous positive PCR or antibody test when they joined the study. (The full results aren’t yet published, but PHE told Vox a preprint would soon be shared online.) Meanwhile, of the 14,000-plus people who had tested negative for the vir...