The outbreak has stoked tension in the Brazilian government, with right-wing President Jair Bolsonaro downplaying risks of the virus and urging the country to return to normal, while his health minister, state governors and local officials urge stricter measures.
The center has thus far been accurate in predicting the evolution of the virus in Brazil, with the number of confirmed coronavirus cases through March 30 falling within the range that the researchers previously predicted.
The researchers are now predicting that by April 20 the number of cases will grow to 25,164 in its most optimistic scenario and 60,413 cases in its most pessimistic.
(Reporting by Jake Spring in Brasilia and Pedro Fonseca in Rio de Janeiro; additional reporting by Marcelo Rochabrun in Sao Paulo; Editing by Dan Grebler and Rosalba O'Brien)