Brazil has had open borders since July, but have recently updated their restrictions to allow foreigners to enter the country through any international airport without quarantine requirement. Those entering the country and staying for up to 90 days must present proof of purchase of health insurance valid in Brazil, and they must maintain coverage for the entire period of the trip. If this does not happen, the traveler may be prevented from entering Brazil.
There are exceptions to these restrictions and updates on where Brazilians can travel.
Since July 29, the Brazilian government decided to open the borders to foreigners, which initially had been closed since March 27. It is quite interesting to note the graph of new daily cases that Brazil reached the highest mark on the same 29th; however, the scenario has been gradually improving after that date.