Travel health in Argentina and Uruguay: vaccines, dengue and safer sex

Travelling to the River Plate as a couple usually means long dinners, walks beside the water and nights that stretch on. Health rarely makes the front page of the plan, yet it is what decides whether the memory is a good one. This guide summarises what the UK Foreign, Commonwealth & Development Office (FCDO), the US CDC and the World Health Organization (WHO) say about Argentina and Uruguay: vaccines, mosquitoes, water, medical care and safer sex. It works for a trip to Buenos Aires, Córdoba, Mendoza, Montevideo or Punta del Este, and it is clear about what we could not confirm. It is not medical advice: speak to a professional or a travel clinic.

When to start

The FCDO asks you to check vaccine recommendations at least eight weeks before travel, for both Argentina and Uruguay. It is a realistic window because some schedules need several doses. If you only have a few days, ask anyway: partial protection is better than none.

Vaccines for Argentina

According to the CDC, hepatitis A is recommended for unvaccinated travellers aged one year or older, and hepatitis B for unvaccinated travellers under 60. All international travellers should be fully vaccinated against measles with the MMR vaccine, and routine vaccines should be up to date. Typhoid is worth considering if you will visit rural areas or places with poor sanitation, or stay a month or longer. Rabies occurs in dogs, wildlife and bats: ask a professional whether pre-exposure vaccination suits you.

Vaccines for Uruguay

For Uruguay the CDC recommends hepatitis A for unvaccinated travellers aged one or older and hepatitis B for unvaccinated travellers of all ages. It repeats the advice on measles and routine vaccines. On rabies, it notes that rabid dogs are not commonly found in Uruguay, although the disease does occur in some wildlife.

Yellow fever

In both Argentina and Uruguay the vaccine is not required for entry. For Argentina, the CDC recommends it for travellers aged nine months or older going to Corrientes and Misiones provinces and does not recommend it for travel limited to other provinces and areas; for Uruguay, the CDC does not recommend it. If your route includes the north-eastern waterfalls or the Misiones rainforest, talk to a doctor.

Dengue and other mosquitoes

The FCDO lists dengue among the health risks for both countries. The CDC says its Argentina page lists no dengue vaccine and that prevention means avoiding bites: repellent, screens or nets and covering clothes. The CDC also mentions Chagas disease, leishmaniasis and Zika in Argentina, and states that malaria is present in some parts of the country; in that case you start the prescribed medicine before departure. A city-and-coast trip carries a different risk from a route north, so ask based on your itinerary.

Fresh water, rain and leptospirosis

The CDC reports increased leptospirosis cases in Argentina and advises against swimming or wading in possibly contaminated water or floodwater, which matters most after heavy rain. For Uruguay it also mentions leptospirosis, together with the advice to swim only in designated areas and avoid fresh water where sanitation is poor.

Altitude and sun

The FCDO says altitude sickness is a risk in parts of Argentina; if you plan to climb from Mendoza towards the mountains, get informed first. For Uruguay, the FCDO highlights strong sun with high UV levels: sunscreen, a hat and water, especially on the coast in summer.

Medical care and insurance

According to the FCDO, medical facilities in Argentina are good but can be expensive and public hospitals tend to be crowded; in Uruguay, medical and dental treatment is expensive. In both cases it recommends travel insurance covering local treatment and evacuation, and contacting the insurer quickly if you are referred to a facility. For emergencies the FCDO gives 107 or 911 in Argentina and 911 in Uruguay.

Safer sex on the road

The WHO reminds us that condoms offer one of the most effective methods of protection against sexually transmitted infections, including HIV, but not against those that cause ulcers outside the genital area, such as syphilis or genital herpes. Safe and highly effective vaccines exist for two viral STIs, hepatitis B and HPV, and cheap rapid tests are available for syphilis, hepatitis B and HIV. The CDC adds, on its Uruguay page, that mpox vaccination is recommended for adults with certain anticipated activities, including sexual contact with new partners or at commercial venues, in two doses four weeks apart.

In practice, a couple travelling with the idea of meeting people can agree beforehand: bring your own condoms, test on a schedule, talk about it with anyone before an encounter and do not mix sex with heavy drinking or drugs. We cover this in more depth in the sexual health guide for the lifestyle.

Other travel risks

The CDC mentions hantavirus and tuberculosis in both countries, New World screwworm (clean and cover wounds, avoid livestock) and animal bites, which should be washed with soap and water before seeing a doctor. It also repeats a very ordinary fact: road crashes are the number one killer of healthy travellers abroad. Avoid motorbikes and night driving, and wear a seatbelt.

What we do not know

We found no official sources on specific sexual-health clinics for travellers in Buenos Aires, Montevideo or other cities, so we recommend none. We do not give prices or turnaround times either.

Frequently asked questions

Do I need any mandatory vaccine to enter?

According to the CDC, the yellow fever vaccine is not required for entry into Argentina or Uruguay.

Is there dengue in Argentina and Uruguay?

The FCDO lists it among the health risks for both. It is prevented by avoiding mosquito bites.

Can I drink tap water?

The FCDO advisories we read do not cover water; check TravelHealthPro or your travel clinic before you go.

How much does a doctor visit cost?

We have not verified fees. The FCDO only says care can be expensive, which is why it insists on insurance.

What protects against STIs?

Condoms, vaccines (hepatitis B and HPV) and regular testing, according to the WHO; none covers everything, so they are combined.

Sources: FCDO (Argentina health; Uruguay health), CDC (traveler pages for Argentina and Uruguay), WHO (sexually transmitted infections). This guide does not replace medical advice.