However, it is not clear when the hard-hit South American country will begin vaccinating children, if at all.

The matter now passes to the health ministry, which will first have to decide whether to add Covid-19 vaccines for five- to 11-year-olds to the national immunization program and acquire child-size doses -- one-third the adult dose.

"Collective vaccination reduces transmission of SARS-CoV-2 for this age group, and as a result, reduces transmission from children and adolescents to adults and the elderly," said Meiruze Freitas, director of Brazilian health regulator Anvisa, announcing the decision.

The pandemic has claimed more than 615,000 lives in Brazil, second only to the United States in absolute numbers.

However, cases and deaths have plunged as Brazil has scaled up vaccination. Currently, 66 percent of the country's 213 million people are fully vaccinated.

The massive immunization campaign comes despite anti-vaccine comments from far-right President Jair Bolsonaro, who has joked the shot could "turn you into an alligator" and refused to be vaccinated himself.

With the world nervously watching the highly contagious new Omicron variant of the virus, Germany, Spain, Greece, Croatia and Hungary have all opened their vaccination drives to younger children recently.

Canada and the United States as well as Israel and Chile have also authorized shots for children.

eNCA