Brazil is poised to grant approval for the emergency use of AstraZeneca Plc and Sinovac Biotech Ltd vaccines against Covid-19, allowing the country to kick-start deploying shots as the virus roars back in Latin America’s largest economy.A majority of directors at health regulator Anvisa cleared the boosters in a Sunday meeting, citing the recent significant increase in the number of Covid-19 cases in Brazil and the lack of alternatives for treatment of the disease.While government technicians highlighted there’s still information needed on the shots, the benefits of vaccinations outweigh those risks, according to rapporteur Meiruze Freitas.“We must continue monitoring the vaccines to capture adverse effects that were perhaps not seen in.