São Paulo, Brazil’s most populous state, applies fourth dose of Covid-19 vaccine

"With the confidence and support of the scientific committee, we move to the fourth dose. The recommendation is that all immunizers available in the network can be applied in this new phase," said Governor João Doria.

RIO DE JANEIRO, BRAZIL - The government of São Paulo, Brazil's most populous and wealthiest state, will apply from today, March 21, the fourth dose of the Covid-19 vaccine in people over 80 years of age.

"With the confidence and support of the scientific . . .

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