Travelers to Colombia should be aware: while entry to the country in general does not require proof of yellow fever vaccination from all arrivals, there are specific destinations where the vaccine remains mandatory or strongly advised. Before you go, check whether your itinerary includes national parks, Amazon reserves, or regions below certain altitudes.
According to Colombia’s official health & tourism guidance, vaccines are not required for most international arrivals. But if you plan to visit places like the Amazon rainforest, Sierra Nevada de Santa Marta, Tayrona National Park, or other “yellow fever risk zones,” then you must have been vaccinated at least 10 days prior to travel. Failure to do so could lead to denied access to those reserves or national parks.
Yellow fever vaccination is required when traveling from certain risk areas — or for transit through such areas — when entering those high-risk tourist zones.
Additionally, the U.S. CDC echoes this, specifying that travellers ≥1 year old must show vaccination when coming from or through yellow fever endemic countries.
Other health tips:
Bring insect repellent, especially for rainforest / jungle hikes;
Consider other recommended vaccinations (Hepatitis A, Typhoid) depending on region;
Check with your doctor if you’ll be in remote / low elevation areas where yellow fever or malaria may be present.
Travel planners should update their checklist: even if the country doesn’t require yellow fever vaccine for default entry, many of Colombia’s best destinations do. It’s better to be safe and vaccinated, especially since many park authorities enforce the rule strictly.