Effectiveness of mRNA boosters after homologous primary series with BNT162b2 or ChAdOx1 against symptomatic infection and severe COVID-19 in Brazil and Scotland: A test-negative design case–control study

Article

Abstract: Background AU Brazil: and Scotland have used mRNA boosters in their respective : populations since S

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Barral-Netto M., Boaventura V.S., Cerqueira-Silva T., de Araujo Oliveira V., Júnior J.B.S., Katikireddi S.V., Mauricio L. Barreto, Paixão E.S., Pearce N., Penna G.O., Robertson C., Rudan I., Sanchez M., Shah S.A., Sheikh A., Werneck G.L.

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scopus