4 ms·
From what I've read, immunity to other coronaviruses typically only lasts a year or so. SARS hasn't infected anyone in over a decade, and it's been a few years
by cameldrv 6y ago
From what I've read, immunity to other coronaviruses typically only lasts a year or so. SARS hasn't infected anyone in over a decade, and it's been a few years since a MERS outbreak.