Which countries require yellow fever vaccination?

There is no single travel list that replaces checking your exact journey. Some rules are aimed at travellers arriving from, or passing through, places with yellow fever risk. A destination’s entry rule can therefore differ for two people arriving from different routes.

Border requirements also do not automatically tell you whether vaccination is medically suitable. Yellow fever vaccination is live attenuated, so a clinician needs to consider health conditions, medicines, pregnancy, and prior reactions.

Review official border and travel-health guidance before leaving, then check again if flights, stopovers, or destinations change. Make a written route that includes transit airports and visits before your main trip. Take that route to a travel-health appointment and keep any required certificate alongside your passport.

If a certificate has been issued before, ask a clinician or travel service whether it remains appropriate for your planned journey.

Get travel-health advice promptly if a required document is missing, your travel is soon, or you have a condition that could affect use of a live vaccine. Seek emergency care after vaccination for wheezing, throat tightness, facial swelling, loss of consciousness, or severe weakness.

Ask whether your point of departure or transit route triggers a requirement, whether your health changes the recommendation, and what practical alternatives exist if vaccination is unsuitable. Ask which mosquito-bite prevention measures to use during travel.