Costa Rica changes yellow fever vaccination policy.
There is no risk of yellow fever transmission in this country. However, this country requires all persons 9 months of age and older to have proof of the yellow fever vaccination if travelling from a country with a risk of yellow fever transmission, including transiting more than 12 hours through an airport in a country with risk of yellow fever transmission.
On November 4, 2016, contrary to the yellow fever risk assessments of the US Centers for Disease Control and Prevention and the World Health Organization, Costa Rica now considers the entire geographic areas of Chad, Ethiopia, Eritrea, Mauritania, Somalia, Sudan, São Tome and Principe, Trinidad and Tobago (with the exception of the city of Port of Spain) and Zambia to be risk areas. Now, a yellow fever certificate is required if arriving from any area in these countries.
Travellers arriving from these countries should be aware that, if required, the yellow fever vaccine must be administered at least 10 days prior to arrival in Costa Rica.