Amadeu Amaral, 7, sails with his father along the Parauau River, during the coronavirus disease (COVID-19) outbreak, in the municipality of Breves, Marajo island, Para state, Brazil, June 7, 2020. REUTERS/Ueslei Marcelino

A gravedigger wears protective clothing (PPE) as he buries Edivaldo da Silva, 77, who died of COVID-19, at Recanto da Paz, a cemetery in the municipality of Breves, during the coronavirus disease (COVID-19) outbreak, on Marajo island, Para state, Brazil, June 7, 2020. REUTERS/Ueslei Marcelino

Paramedics treat a man who was injured in a boat accident on the river Parauau as they help to move him onto a boat to be transported to a Hospital, during the coronavirus disease (COVID-19) outbreak, in the municipality of Breves, Marajo island, Para state, Brazil, June 7, 2020. REUTERS/Ueslei Marcelino

Men wearing protective face masks drive by in an open-top car during the coronavirus disease (COVID-19) outbreak, in the municipality of Breves, on Marajo island, Para state, Brazil, June 7, 2020. REUTERS/Ueslei Marcelino

A boy plays with a kite as he swims in the river Acuti Pereira at the riverside community Santo Ezequiel Moreno where he lives, during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, on Marajo island, Para state, Brazil, June 5, 2020. REUTERS/Ueslei Marcelino

Men wear protective face masks as they sit outside at the riverside community Menino de Deus, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Breves, Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

A three-toed sloth sits on a boat near the riverside community Sao Jose during the coronavirus disease (COVID-19) outbreak, in the municipality of Melgaco, on Marajo island, Para state, Brazil, June 4, 2020. REUTERS/Ueslei Marcelino

Children sit by the entrance of their home at the riverside community Pinheiro, while healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, on Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

A healthcare worker checks a man's temperature at the riverside community Pinheiro, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, on Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

Maria Angela, 56, who has tested positive for COVID-19, is transferred by Dr Jorge Hernandez, 35, and health workers from her home at the riverside community Menino de Deus, onto an ambulance boat as she is taken to hospital, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, on Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

An aerial view through an airplane window shows a deforested plot of land near a river as the aeroplane travels between the city of Belem and Breves, during the coronavirus disease (COVID-19) outbreak, on Marajo island, Para state, Brazil, June 3, 2020. REUTERS/Ueslei Marcelino

Assembleia de Deus, a church that sits by the river Parauau, stands in the municipality of Breves, during the coronavirus disease (COVID-19) outbreak, Marajo island, Para state, Brazil, June 7, 2020. REUTERS/Ueslei Marcelino

A man experiencing severe pain and symptoms of COVID-19, waits on a hammock for healthcare workers to transfer him from his house at the riverside community Galileia, to a hospital, during the coronavirus disease (COVID-19) outbreak, in the municipality of Melgaco, on Marajo island, Para state, Brazil, June 4, 2020. REUTERS/Ueslei Marcelino

Healthcare workers move Valter da Silva, 51, who tested positive for COVID-19, onto a stretcher as he is transferred to hospital from his home at the riverside community Pinheiro, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

Acai berries and fish are left on a table at a home being visited by health care workers who are visiting riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Melgaco, on Marajo island, Para state, Brazil, June 4, 2020. REUTERS/Ueslei Marcelino

A resident of the riverside community Galileia, whose wife tested positive for COVID-19, removes the shells of prawns as he prepares a meal at his home, while being visited by healthcare workers as they visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Melgaco, on Marajo island, Para state, Brazil, June 4, 2020. REUTERS/Ueslei Marcelino

Dr Jorge Hernandez, 35, stands near Maria Angela, 56, who has tested positive for COVID-19, as healthcare workers carry her on a stretcher at the riverside community Menino de Deus where she lives, to be taken onto an ambulance boat to be transferred to hospital, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, on Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

Maria de Nazare 80, lies on a hammock as she is checked by Marilia Correa, 38, a nurse, at her home at the riverside community Pinheiro, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, at Marajo island, Para state, Brazil, June 6, 2020. REUTERS/Ueslei Marcelino

A healthcare worker treats a child who has an infection, as his mother looks on, in front of their home at the riverside community Menino de Deus, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, on Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

Luciendro Costa, 13, whose mother tested positive for COVID-19, bathes in the river Acuti Pereira, at the riverside community Menino de Deus, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, on Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

Healthcare workers Marilia Correa, 38, a nurse, Nizomar Monteiro, 38, a health secretary and Ademilton Valente, 34, a boat driver, walk along a bridge to access a house in the riverside community Pinheiro, as they visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, on Marajo island, Para state, Brazil, June 6, 2020. REUTERS/Ueslei Marcelino

Shirley Moraes, 39, who tested positive for COVID-19, is transferred to a hospital on an ambulance boat from Melgaco to Breves, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Breves, on Marajo island, Para state, Brazil, June 10, 2020. REUTERS/Ueslei Marcelino

Healthcare workers move Valter da Silva, 51, who tested positive for COVID-19, onto a stretcher to be transferred to hospital from his home at the riverside community Pinheiro, as healthcare workers visit riverside communities to check on residents during the coronavirus disease (COVID-19) outbreak, in the municipality of Portel, Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

A street cleaner disinfects a street wearing protective clothing (PPE), during the coronavirus disease (COVID-19) outbreak, in the municipality of Breves, on Marajo island, Para state, Brazil, June 3, 2020. REUTERS/Ueslei Marcelino