RIO DE JANEIRO, BRAZIL - Two outbreaks of the alpha variant of the novel coronavirus show that vaccinated individuals may still transmit the virus and develop Covid-19, but that vaccination prevents severe cases.
The infected, with an average age over 70, were administered one dose of the AstraZeneca vaccine or two doses of the Coronavac. Only one death was registered, of an 84 year-old with Alzheimer's disease.
The study supported by FAPESP (São Paulo State Research Foundation) was published on the Preprints with The Lancet platform, still to be peer-reviewed.
"The results show that people who . . .
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