The World Health Organization has updated the status of yellow fever vaccination requirements for countries and the following statements were added.
For over 30 countries to date, we read:
The certificate is valid for life: So these countries recognize the protection for life following one dose of yellow fever vaccine.
Other countries have the following:
The certificate is valid for 10 years: So these countries require a booster within the last 10 years to enter.
Another country with the following statement: Honduras
The certificate is valid for life if vaccination took place 10 days before departure.
Please also noted that some countries have withdrawn their entry requirement for the international certificate.
EX: Lebanon and Mexico whose certificates are now not required regardless of the origin of the traveler.
The WHO World Health Assembly in May 2014 adopted an amendment to Annex 7 of the International Health Regulations (2005) (IHR), which stipulates that the period of protection afforded by yellow fever vaccination, and the term of validity of the certificate will change from 10 years to the duration of the life of the person vaccinated.This change will enter into force legally in June 2016. Until then the current IHR text on yellow fever vaccination and certificates continues to apply, and some countries may continue to request proof of vaccination or a booster within the last 10 years from travellers.
When WHO and IHR (International Health Regulation) will add the new countries that will accept a single dose as lifelong protection, you will be notified
A new requirement in some countries : a certificate of vaccination against polio for travelers from countries where there is endemic transmission of polio.
All countries were again verified and updated according to their latest recommendations.