Travel health alerts
Disease outbreak alerts for Brazil
6 outbreaks reported for Brazil
Last checked against TravelHealthPro on 2026-07-17.
Yellow fever
Reported 09 June 2026Spread by mosquito bites
As of 1 June 2026, a total of 11 confirmed yellow fever cases, including six deaths, have been reported in Brazil for 2026. Most cases (nine) were reported in Sao Paulo state.
There's a vaccine for this
Avoid mosquito bites and have the yellow fever vaccine — we're a registered centre and issue the certificate.
Dengue
Reported 19 February 2026Spread by mosquito bites
As of 1 Feburary 2026, 62,707 cases (eight deaths) of dengue have been reported in Brazil since the start of the year. Case numbers usually increase during the first few months of the year. A total of 1,453,633 confirmed cases (1,793 deaths) were reported during 2025. Serotypes DENV-1, DENV-2, DENV-3 and DENV-4 were all reported.
There's a vaccine for this
Spread by daytime-biting mosquitoes. Use a DEET repellent, cover up, and stay somewhere with screens or air-conditioning.
Chikungunya
Reported 29 December 2025Spread by mosquito bites
As of 20 December 2025, a total of 247,268 chikungunya cases, and 120 deaths, have been reported for 2025 in Brazil.
There's a vaccine for this
Spread by daytime-biting mosquitoes — repellent and covering up are key; a vaccine may suit some travellers.
Zika
Reported 12 November 2025Spread by mosquito bites
As of 1 November 2025, a total of 22,831 cases of Zika virus disease have been reported in Brazil for 2025.
No vaccine — how to stay safe
Avoid daytime mosquito bites. If you're pregnant or planning pregnancy, discuss travel with us first, and use condoms as Zika can pass sexually.
Methanol poisoning
Reported 22 October 2025Reduce your risk while travelling
On 20 October 2025, a total of 47 confirmed cases of methanol poisoning, with nine confirmed deaths, have been reported in Brazil for 2025. São Paulo state reported the highest number, with 38 confirmed cases and 19 under investigation. Confirmed cases have also been reported in Paraná (5), Pernambuco (3) and Rio Grande do Sul (1) states. Investigations are ongoing into suspected cases in Bahia, Goiás, Mato Grosso do Sul, Minas Gerais, Piauí, Rio de Janeiro and Tocantins states. Please see the FCDO guidance on methanol poisoning for further details.
No vaccine — how to stay safe
Follow good food, water and insect-bite precautions, and speak to our travel health team about protecting yourself.
Oropouche virus disease
Reported 09 September 2025Spread by mosquito bites
As of 8 September 2025, a total of 11,967 confirmed cases of Oropouche virus disease and seven deaths (five confirmed, two under investigation) have been reported in Brazil for 2025. The most affected state is Espirito Santo with 6,323 cases and one death, followed by Rio De Janeiro with 2,500 cases and five deaths, and Minas Gerais with 1,367 cases.
No vaccine — how to stay safe
No vaccine — avoid bites from midges and mosquitoes using repellent, fine-mesh nets and covered skin.
Travelling to Brazil?
Our travel health team will confirm exactly which vaccines and precautions are right for your trip in one short consultation.
Contains public sector information from TravelHealthPro (NaTHNaC), licensed under the Open Government Licence v3.0. © UK Health Security Agency. Open Government Licence v3.0. This page is general guidance, not medical advice — confirm what you need for your trip with our travel health team.