A Yellow Fever vaccination certificate is only required for travellers coming from a country with risk of Yellow Fever transmission.
Children: A vaccination certificate is required for children of all ages. However, Yellow Fever vaccination is not recommended for children under 9 months of age. If travel is unavoidable and the child's physician considers vaccination unwise, ask for a letter on the physician's own stationary explaining the reason for not vaccinating the child. Note that some countries may not honour this and the infant may be refused entry or be put under surveillance upon arrival.
The vaccination requirement is imposed by this country for protection against Yellow Fever since the principal mosquito vector Aedes aegypti is present in its territory.
Countries may change their vaccination requirements without notice and in some instances border agents use their discretion to deny entry despite the officially stated requirements.
AFRICA - Angola, Benin, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Republic of the Congo, Democratic Republic of the Congo, Côte d'Ivoire, Equatorial Guinea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Sierra Leone, South Sudan, Sudan, Togo, Uganda.
AMERICAS - Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Paraguay, Peru, Suriname, Trinidad and Tobago, Venezuela.
A Yellow Fever certificate is valid 10 days after vaccination.
Existing and new Yellow Fever vaccination certificates are now valid for life. The World Health Organization announced that as of 11 July 2016, countries can no longer require travellers to show proof of re-vaccination or a booster dose as a condition of entry. Travellers should note that this new regulation may not be honoured by all border authorities during the transition phase.
Vaccination waiver: A vaccination waiver can be issued by your medical practitioner if the Yellow Fever vaccine is contraindicated for medical reasons. Be aware that problems may arise when crossing borders and the vaccination waiver may not be honoured. Take meticulous anti-mosquito bite measures during the daytime in Yellow Fever risk areas. More details on insect bite prevention.