Do You Need a Yellow Fever Certificate for Tanzania?

Yellow fever certificates cause more confusion than almost any other entry document for Tanzania. Some travelers carry one without needing it, while others are caught out by a transit stop they never thought about.

This article explains the general principles. Entry rules can change and depend on your route, so always confirm your own requirements with a travel clinic or doctor and with official sources before you travel.

The general rule

Tanzania requires a yellow fever certificate from travelers arriving from countries with a risk of yellow fever transmission. In some cases this also applies to travelers who have transited through a risk country, depending on the length of the transit. The rule is about where you are coming from, not your nationality.

Travelers flying directly from the United States, the United Kingdom or most of Europe usually do not need a certificate for Tanzania, but your routing matters.

The list of risk countries is maintained by the World Health Organization and can be updated, and individual countries apply their own interpretation of it. That is why we always recommend checking close to your travel date rather than relying on advice from a previous trip or from friends who traveled by a different route.

Why your route matters

Several countries in Africa and South America are considered yellow fever risk countries, including Tanzania's neighbor Kenya. This affects common itineraries.

• Combining a Kenya safari with Tanzania.
• Crossing into Tanzania by land from a neighboring risk country.
• Connecting through an airport in a risk country, particularly on longer layovers.
• Visiting Uganda or Rwanda before arriving in Tanzania.
• Traveling on to Zanzibar after time in a risk country.

Zanzibar and the mainland

Zanzibar follows the same broad principle, and officials on arrival may ask for your certificate if your travel history suggests you need one. If your itinerary includes a neighboring country before Zanzibar, keep your card with you rather than in checked luggage.

Getting vaccinated

The vaccine must be given at an approved yellow fever vaccination center, which records it on an International Certificate of Vaccination or Prophylaxis, often called the yellow card. The certificate becomes valid ten days after vaccination, so plan ahead. Under current international rules, a certificate is valid for life.

The vaccine is not suitable for everyone. Infants, pregnant travelers, older travelers and people with certain medical conditions may need individual advice. If your doctor advises against vaccination, they can issue a medical exemption letter, which you should carry with you.

Carrying your certificate

Keep your original yellow card with your passport in your hand luggage. Take a photo of it as a backup, but be aware that officials may want to see the original. Make sure the name on the certificate matches your passport, and that the clinic stamp, date and signature are clear. A lost card can be hard to replace while traveling, so treat it like a travel document.