1
For the purpose of this publication, the terms “country” and “countries” refer to countries, territories, and areas.
2
Risk of yellow fever transmission is defined as yellow fever being currently reported, or having been reported in the past, and the presence of vectors and animal reservoirs representing a
potential risk of infection and transmission.
3
The symbol “-” means “No”.
4
Country requirements are subject to change at any time. It is important for travellers to ensure that they know the requirements of the country to which they are travelling by checking with
the relevant consulate or embassy.
Period of validity of certificate of vaccination against yellow fever: Pursuant to Article 36 of the IHR (2005), vaccination against yellow fever shall be recorded according to the format of
the International Certificate of Vaccination or Prophylaxis presented in Annex 6 of the IHR (2005). In accordance with the amendment to Annex 7 of the IHR (2005), adopted by the World
Health Assembly through resolution WHA67.13, from 11 July 2016 the period of validity for all certificates of vaccination against yellow fever changed from 10 years to the duration of
the life of the person vaccinated, including for certificates already issued and newly issued certificates.
Accordingly, as of 11 July 2016, valid certificates of vaccination presented by
arriving travellers cannot be rejected on the grounds that more than 10 years have passed since the date on which the vaccination became effective, as stated on the certificate. Boosters
or revaccination cannot be required.
5
Includes requirement of proof of vaccination against yellow fever for travellers having transited more than 12 hours through the airport of a country determined by WHO to be at risk for
yellow fever transmission.
6
The risk of yellow fever transmission is present only in parts of the country. For details, refer to the WHO International Travel and Health Country List (2022).
7
The list of countries these requirements apply differs from that of countries determined by WHO to be at risk for yellow fever transmission. For details, refer to the WHO International
Travel and Health Country List (2022).
8
Includes requirement of proof of vaccination against yellow fever for travellers having transited through the airport of a country determined by WHO to be at risk for yellow fever
transmission, regardless of the duration of the transit.
9
Includes requirement of proof of vaccination against yellow fever for travellers having transited more than 4 hours through the airport of a country determined by WHO to be at risk for
yellow fever transmission.
11
Includes requirement of proof of vaccination against yellow fever for travellers having transited more than 24 hours in Brazil, Bolivia, Peru, and Venezuela.
© World Health Organization 2022. Some rights reserved. This work is available under the CC BY-NC-SA 3.0 IGO
licence.
The designations employed and the presentation of the material in this publication do not imply the expression of any
opinion whatsoever on the part of WHO concerning the legal status of any country, territory, city or area or of its
authorities, or concerning the delimitation of its frontiers or boundaries.