Travel health alerts
Disease outbreak alerts for Argentina
6 outbreaks reported for Argentina
Last checked against TravelHealthPro on 2026-07-05.
Hantavirus
Reported 11 May 2026Reduce your risk while travelling
As of 25 April 2026, 101 confirmed cases of hantavirus infection and 32 deaths have been reported in Argentina during the 2025/2026 season. Cases have been reported in the following provinces: Buenos Aires, Salta, Santa Fe, Chubut, Río Negro, Entre Ríos and Jujuy. Please see UKHSA guidance for more details on hantavirus.
No vaccine — how to stay safe
Follow good food, water and insect-bite precautions, and speak to our travel health team about protecting yourself.
Chikungunya
Reported 17 March 2026Spread by mosquito bites
As of 16 March 2026, a total of 2,701 chikungunya cases have been reported in Argentina since July 2025. Out of 103 confirmed or probable cases, 63 were locally acquired and 40 cases had a history of travel to either Bolivia, Brazil, Cuba or Paraguay.
There's a vaccine for this
Spread by daytime-biting mosquitoes — repellent and covering up are key; a vaccine may suit some travellers.
Mpox
Reported 17 March 2026Spread by close or bodily-fluid contact
As of 16 March 2026, one mpox clade Ib case was reported in Argentina in an adult with no recent travel abroad, but a history of sexual contact with multiple people including travellers, in the period before onset of symptoms. This is the first locally acquired case of mpox clade Ib reported in Argentina.
No vaccine — how to stay safe
Avoid close skin-to-skin contact with anyone who has a rash or lesions, and contact with wild animals; wash hands often.
Zika
Reported 19 November 2025Spread by mosquito bites
As of 1 November 2025, a total of 720 cases of Zika virus disease have been reported in Argentina during 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.
Dengue
Reported 03 November 2025Spread by mosquito bites
As of 19 October 2025, a total of 17,689 dengue cases have been reported in Argentina during 2025. Case numbers peaked in May 2025 and show a decrease in numbers compared to 2024. Serotypes DENV-1, DENV-2 and DENV-3.
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.
Argentine haemorrhagic fever
Reported 03 October 2025Reduce your risk while travelling
As of 13 September 2025, a total of 373 suspected cases of Argentine haemorrhagic fever (AHF) and 49 confirmed cases, including three deaths, have been reported in Argentina in 2025. Confirmed cases have been reported in Buenos Aires, Cordoba and Santa Fe. Please see UKHSA guidance on AHF 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.
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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.