Coronavirus: Brazil overtakes Spain and Italy as new cases grow
Officials on Saturday reported 14,919 new cases in the past 24 hours, taking the total to 233,142. Only the US, Russia and the UK have higher numbers.
The daily death toll in the Latin American nation rose by 816 to 15,633 - the world's fifth highest.
Experts warn that the real figure may be far higher due to a lack of testing.
The mayor of the country's most populous city, São Paulo, warned on Sunday that the city's health system could collapse. Bruno Covas said the public hospitals in the city reached 90% capacity for emergency beds, with demand still growing.
The Latin American nation now has more than 230,000 infections - the world's fourth highest number.
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