Brazil - Geographical disease risk index

Malaria

Risk Category B

Risk Category explanation

A: countries where the malarial risk is present in the whole country all year or with very clear seasonal guidance.

B: countries where only parts of the country are affected.

C: countries where malaria is limited to discrete pockets, where the risk of infection is low, or where there are few visitors to affected areas. It is likely that tourists who visit these countries will be able to donate but individual assessment must be applied. Donors are likely to have detailed knowledge if they have visited any malarial areas. The healthcare professional should establish whether the donor sought advice prior to travel and if they were advised to take antimalarial precautions.

All year in the states of Amazonia (Acre, Amapa, Amazonas, Maranhäo (west)), Mato Grosso (north), Para (except Belem City on the coast), Rondônia, Roraima and Tocantins including the urban areas Porto Velho, Boa Vista, Cruzeiro do sol, Rio Branco, Macapa, Manaus, Santarém and Maraba.

All year on cruises up the Amazon including the city of Manaus.

All year in the jungle and rural areas outside the resort Iguaçu Falls especially towards Paraguay.

Previous Malaria risk:

  • Until February 1996:
    All year in whole country.
  • Until September 2006:
    All year in rural areas below 900 metres.

Search for Malaria guidance

Trypanosoma Cruzi

Risk

Search for Trypanosoma Cruzi guidance

West Nile Virus

No Risk

Viral haemorrhagic fever

No Risk

Tropical viruses

Risk

  • Chikungunya Virus
  • Dengue Virus
  • Yellow Fever Virus
  • Zika Virus

Risk applies all year in whole country.

Search for Tropical virus guidance

Additional Information

For the Israeli city of Acre, see Israel.

Malaria Map

A map showing malaria risk areas in Brazil, as described in the page text.

Using the map

This map is only intended as a guide and must always be used in conjunction with the Malaria guidance text above. Sourced from Travax and TravelHealthPro. Please note, the map above may differ from the source version, which may have been updated since publication here.

Reason for change:
Clarification of all-year risk for tropical viruses
Version details:

GDRI Edition 002 Release 54 (19 January 2026)