Experts say insufficient testing might mean that the true figure in Brazil could be far greater.
Brazil on Wednesday hit a record high for new cases of coronavirus in twenty-four hours.
Pazuello's appointment to the top job came after then-Health Minister Luiz Henrique Mandetta was sacked last month for publicly supporting state governors who shut down nonessential businesses and adopted other measures against the virus, and after Mandetta's replacement, Nelson Teich, resigned last week. Teich's predecessor (Luiz Mandetta) was sacked for disagreement with the president on measures to maintain social distance.
However, Bolsonaro focused his efforts on reducing the impact of the epidemic on the economy, which was supported by many people.
The outbreak has overwhelmed hospitals in Brazil's hot spots, specifically São Paulo, the country's most populous state.
In terms of diagnosing the virus, Brazil is not only far behind Russian Federation and the United States, but even behind other countries in the region such as Peru, Ecuador, Chile and Colombia, which have smaller economies. The world's No 1 economy has more than 1.5 million cases.
Last week, Sao Paulo's mayor cautioned that its wellness system can be bewildered soon if citizens do not adhere to social distancing standards.
The President said that what he most wants is for the country.
As of Monday, the country's Health Ministry has processed almost 338,000 COVID-19 tests.
Health workers prepare to move 89-year-old COVID-19 patient Sildomar Castelo Branco into an aircraft as he is transferred from Santo Antonio do Ica to a hospital in Manaus, Brazil, on Tuesday..
The federal government is also facing logistical problems that have affected their distribution of the 15,000 ventilators that are crucial to severe COVID-19 patients.
Media captionThe BBC's Katy Watson looks at how Bolsonaro has responded to the virus How is President Bolsonaro handling the crisis?
Brazilian President Bolsonaro has always opposed the blockade, arguing that it will harm the national economy.
In March, he delivered a speech calling on the mayor and the governor to remove restrictions: "Our lives must continue, we must keep our jobs, we must return to normal".
"Based on my experience as an athlete, if I am infected with the virus, there is no reason to worry. Perhaps at most it's just a small flu", he said.