Current health alerts for Costa Rica
Health notices reported for Costa Rica, with what each means for your trip and how to protect yourself. Our pharmacist will tailor this to your plans.
Chikungunya
On 13 July 2026, the U.S. Embassy in Costa Rica reported an outbreak of chikungunya in Playa Langosta and the surrounding Guanacaste coast including the Santa Cruz area. 45 suspected cases (four confirmed, 17 probable) have been recorded. On 16 July 2026 the US CDC issued a Travel Alert regarding an increased risk of chikungunya to travellers visiting this area.
There's a vaccine for this
Daytime mosquitoes spread it, so repellent and covering up matter; a vaccine suits some travellers.
Yellow fever
On 12 October 2025, authorities in Costa Rica reported a confirmed yellow fever case in an American traveller who recently visited Amazon regions of Peru, before travelling to Costa Rica on 8 October 2025. According to available information, this traveller did not have a yellow fever vaccine.
There's a vaccine for this
Keep mosquito bites off and ask us about the yellow fever vaccine and the certificate some countries require for your route.
Dengue
As of 6 September 2025, a total of 3,837 dengue cases have been reported since the start of the year. All four dengue serotypes have been reported in Costa Rica during 2025.
Last updated 8 August 2026. Contains public sector information from TravelHealthPro (NaTHNaC), licensed under the Open Government Licence v3.0. © UK Health Security Agency. This is general information, not personal medical advice — your travel-health needs are assessed by our pharmacist.
Travelling to Costa Rica?
Book a travel consultation and we'll match your vaccines and advice to the latest picture for your trip.