How much and how long will one dose of COVID vaccines prevent virus variants?
By Daniel R. Lucey MD, MPH, FIDSA In December, distinct SARS-CoV-2 virus variants with multiple mutations in the spike (S) protein were reported in the UK (“B.1.1.7”) and South Africa (“B.1.351”), and then, on Jan. 10, in travelers from northern Brazil arriving in Japan (“B.1.1.248”). A crucial question is whether any COVID vaccine will have […]