President Bolsonaro of Brazil has become the latest world leader to test positive for coronavirus. Brazil has the second-highest number of cases and deaths in the world, after the United States.
Mr Bolsonaro has been consistently dismissive of the threat posed by the pandemic and has claimed that lockdowns are more damaging than the virus itself.
Brazil and South America are now among the worst-affected parts of the world.
Huw Edwards presents BBC News at Ten reporting from Katy Watson in Sao Paulo and Science Editor David Shukman.
Brazil is the largest country in both South America and Latin America.
Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 states and the Federal District. It is the largest country to have Portuguese as an official language and the only one in the Americas, as well as the most populous Roman Catholic-majority country.
Its Amazon basin includes a vast tropical forest, home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. Brazil is classified as an upper-middle income economy by the World Bank and a newly industrialized country.
The United States is a country also known as the United States of America, USA, US or just America. There are fifty states in the union, which is a federal republic ruled by a representative democracy. Nearly ten million square kilometres are inhabited by over 300 million people. The majority of Americans speak English.