Costa Rica

Outbreaks tracked here

Hepatitis A outbreak, Costa Rica moderate monitoring
Confirmed cases: 1,537 media, unverified · Suspected cases: 23 media, unverified

Global Dengue US CDC · Level Level 1 · 2 Oct 2026
Dengue is a year-round risk in many parts of the world, with outbreaks commonly occurring every 2–5 years. Travelers to risk areas should prevent mosquito bites.
Chikungunya: Advice for travellers Government of Canada · Level Level 2 · 1 Oct 2026
Hepatitis A in Costa Rica US CDC · Level Level 1 · 18 Sept 2026
There is an outbreak of hepatitis A (HAV) in Costa Rica. Most cases have been reported in San José province.
Chikungunya in Costa Rica US CDC · Level Level 2 · 30 Jul 2026
There is an outbreak of chikungunya in northwest Costa Rica. You can protect yourself by preventing mosquito bites.
Global Measles US CDC · Level Level 1 · 28 May 2025
Measles cases are rising in many countries around the world. All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, according to CDC's measles vaccination recommendations for…