A line of vehicles curls around a COVID-19 vaccination point for priority elderly persons in the Ceilandia neighborhood, on the outskirts of Brasilia, Brazil, Monday, March 22, 2021. (AP Photo/Eraldo Peres)

A man gets his dose of the Sinovac vaccine at a COVID-19 vaccination point for seniors in Duque de Caxias, Brazil, Wednesday, March 24, 2021. (AP Photo/Silvia Izquierdo)

Copacabana beach sits empty of visitors which is closed due to reinstated COVID-19 pandemic restrictions in Rio de Janeiro, Brazil, Saturday, March 20, 2021. (AP Photo/Lucas Dumphreys)

Healthcare workers take on a stretcher a patient suspected of having COVID-19 into the HRAN public hospital in Brasilia, Brazil, Tuesday, March 23, 2021. Hundreds of Brazilian economists, including former finance ministers and central bank presidents, urged the Brazilian government in an open letter published on Monday to speed up vaccination and adopt tougher restrictions to stop the rampant spread of the new coronavirus. (AP Photo/Eraldo Peres)

The body of a COVID-19 victim lies in a body bag at the ICU of the Sao Jose municipal hospital in Duque de Caxias, Brazil, Wednesday, March 24, 2021. (AP Photo/Felipe Dana)

Cemetery workers in full protective gear carry a coffin that contains the remains of a person who died from complications related to COVID-19 to a gravesite at the Vila Formosa cemetery in Sao Paulo, Brazil, Wednesday, March 24, 2021. (AP Photo/Andre Penner)

Cemetery workers in full protective gear lower a coffin that contain the remains of a person who died from complications related to COVID-19 at the Vila Formosa cemetery in Sao Paulo, Brazil, Wednesday, March 24, 2021. (AP Photo/Andre Penner)

Family members attend the burial of Sgt. Jorge Luis Pereira da Silva, 54, who died from COVID-19, at the Campo da Esperanca cemetery in Brasilia, Brazil, Tuesday, March 23, 2021. The nation had an average of 2,235 deaths a day last week – the highest since the beginning of the pandemic. (AP Photo/Eraldo Peres)

A pillow with a rose sits on the sidewalk during a protest against the Government's handling of the COVID-19 pandemic, organized by the Rio de Paz NGO in front of the Ronaldo Gazolla hospital in Rio de Janeiro, Brazil, Wednesday, March 24, 2021. (AP Photo/Silvia Izquierdo)

Healthcare workers transport a COVID-19 patient in an intensive care unit at the Hospital das Clinicas in Porto Alegre, Brazil, Friday, March 19, 2021. (AP Photo/Jefferson Bernardes)

A demonstrator dressed as death performs outside Planalto presidential palace to protest the president's handling of the COVID-19 pandemic in Brasilia, Brazil, Friday, March 26, 2021. Brazil surpassed 300,000 deaths from the virus this week. (AP Photo/Eraldo Peres)

An intubated COVID-19 patient is treated in the ICU of a field hospital built inside a gym in Santo Andre, on the outskirts of Sao Paulo, Brazil, Thursday, March 4, 2021. (AP Photo/Andre Penner)

Supporters of Brazilian President Jair Bolsonaro protest the start of a 10-day period of increased restrictions, which includes Holy Week, to help curb the spread of COVID-19, on Copacabana beach in Rio de Janeiro, Brazil, Friday, March 26, 2021. (AP Photo/Silvia Izquierdo)

Brazilian President Jair Bolsonaro, center, arrives for a press conference following a meeting about the federal government's response to the COVID-19 pandemic at the presidential residence Alvorada Palace in Brasilia, Brazil, Wednesday, March 24, 2021. In recent weeks, Latin America’s largest country has become the pandemic’s global epicenter, with more deaths from the virus each day than in any other nation. (AP Photo/Eraldo Peres)