The CDC is urging travelers to get vaccinated because of the potentially fatal effects of yellow fever. Vaccinations are recommended for any eligible person 9 months of age or older traveling to Brazil, specifically Espírito Santo, São Paulo, and Rio de Janeiro states, and certain cities in Bahia state, as well as Ilha Grande in particular.
Individuals heading to Brazil should receive the vaccination at least 10 days before travel. If a traveler is unvaccinated and cannot get the vaccination in the appropriate amount of time, areas where vaccination is recommended should be avoided.
The Food and Drug Administration–approved yellow fever vaccine, YF-VAX, is not currently available because of manufacturing issues. Stamaril, another yellow fever vaccine, is available at a limited number of yellow fever vaccination clinics in the United States.
In light of these supply issues, the CDC has provided resources to locate yellow fever vaccination clinics.