EFESao Paulo

Authorities in Sao Paulo, Brazil's wealthiest and most populous state, inaugurated Friday a campaign to vaccinate children between the ages of 5 and 11 against Covid-19.

"It is a historic moment for Brazil," Gov. Joao Doria, clad in a shirt emblazoned with the slogan #VacinaJa (Vaccinate Now), said at a hospital in Sao Paulo city.