Open Outbreak

Should I be worried about Yellow fever in Colombia?

Updated · Graded from official assessments; nothing here is medical advice.

Yellow fever in Colombia · elevated

If you are in the affected area no assessment
No agency has published an assessment for people in the affected areas of Colombia. The main official Colombia update available here is a PAHO story citing Colombia’s Ministry of Health.
If you are elsewhere in the same country or region no assessment
No agency has published an assessment for people elsewhere in Colombia. The main official Colombia update available here is a PAHO story citing Colombia’s Ministry of Health.
If you are travelling there soon high
WHO assessed the risk in the Region of the Americas as high on 16 May 2025. Colombia is one of the countries named in that update. According to WHO
If you are elsewhere in the world moderate
WHO assessed the global risk as moderate on 24 June 2026. That is the published assessment for people elsewhere in the world. According to WHO

What is happening

Yellow fever activity in Colombia is under watch as WHO says transmission in the Americas continued into 2026. The clearest Colombia-specific official figures available here come from a PAHO story citing Colombia’s Ministry of Health, which said that through epidemiological week 26 of 2025 the country had confirmed 114 human cases and 49 deaths, with Tolima, Putumayo, Nariño, Caquetá, and Meta most affected. WHO also said six countries in the Americas reported 79 human infections from 2026-01-01 to 2026-05-26, but a direct Colombian national 2026 total was not available here. Media reports in September and October 2026 give conflicting, unverified Colombia totals, including 58 cases and 27 deaths in one report and more than 192 cases in another. Reported control measures include vaccination, mosquito-bite prevention, entomological studies, stronger epizootic and vector surveillance, and a CDC Level 2 travel notice for Colombia.

Who is affected and how it spreads

Yellow fever is a viral infection spread by infected mosquitoes. WHO says it is maintained mainly in mosquito–primate cycles in forests, with periodic spillover into people. In towns and cities where Aedes mosquitoes are present, transmission can be amplified and urban outbreaks can happen. Vaccination is the main tool for prevention and control.

What officials advise

What we are watching

Updates

Sources