Brazil's president casts doubts on Covid vaccine as second wave hits – video
Jair Bolsonaro, who has said he will personally refuse any Covid-19 vaccine, has cast doubt on the effectiveness and safety of a vaccination that will be rolled out in Brazil as the country's death toll passed 200,000 this week.
Manaus, the capital of Brazil's largest state, Amazonas, has been put under a daily 11-hour curfew as it faces a health system breakdown with oxygen shortages and thousands of deaths