
Single dose of vaccine acts as ‘booster’ in those with prior COVID-19 infection
These are the findings of a study, published as a research letter in The Lancet, of 51 UK healthcare workers, around half of whom had a previous laboratory-confirmed SARS-CoV-2 infection. It showed that a single dose of Pfizer/BioNTech’s RNA vaccine resulted in a significantly enhanced immune response against the virus, compared to a single dose in those without prior infection. […]
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