Single COVID-19 vaccine dose boosts protection in previously infected: study

People who had previously had mild or asymptomatic infection had significantly enhanced protection against the Kent and South Africa variants, after a single dose of the mRNA vaccine.

(Subscribe to Science For All, our weekly newsletter, where we aim to take the jargon out of science and put the fun in. .) A single dose of COVID-19 vaccine boosts protection against SARS-CoV-2 coronavirus variants, but only in those previously infected with the disease, . The researchers looked at the U.K. and South Africa variants, however, they think it is possible that the findings will apply to other variants in circulation, such as the Brazil (P.1) and India (B.1.617 and B.1.618) variants.