The virus killed 50,000 people in three months, but that number doubled in just 50 days. There have been more than three million confirmed cases so far.
The pandemic is yet to peak but shops and restaurants have already reopened.
President Jair Bolsonaro has downplayed the impact of the virus and opposed measures that could hit the economy.
The far-right leader, who caught the disease himself and recovered, fought restrictions imposed by state governors to curb Covid-19, and has frequently joined crowds of supporters, at times without a face mask.