Brazil’s Covid-19 vaccination program at risk due to 2nd dose no-shows

The country’s vaccination program has also repeatedly missed targets due to a shortage of doses resulting from delivery delays of active ingredients from China and India.

By Pedro Fonseca

RIO DE JANEIRO, BRAZIL - Brazil’s Covid-19 vaccination program is being put at risk by people failing to show up for their second shot, with 1.5 million people missing appointments for the follow-up dose needed to maximize protection, according to the Health Ministry.

Specialists say that is particularly concerning after a recent real-world study from Chile found that the Sinovac vaccine, which has accounted for some 80% of Brazil's program, is just 16% effective after one shot.

“Without the two doses, we get neither full protection nor a long duration of protection . . .

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