Yellow Fever in Brazil
There is a large, ongoing outbreak of Yellow Fever in many areas of Brazil.
Yellow Fever is caused by a virus that is spread through mosquitoes. The symptoms include fever, chills, headache, backache, and muscle aches and take 3–6 days to develop. It can lead to organ failure and death.
People who have never been vaccinated against Yellow Fever should avoid traveling to areas of Brazil where Yellow Fever vaccination is recommended.
Travelers going to areas with ongoing outbreaks may consider getting a booster dose of Yellow Fever vaccine if it has been 10 or more years since they were vaccinated.
In response to the outbreak that began in early 2017, the World Health Organization has expanded the list of areas where Yellow Fever vaccination is recommended for international travelers to Brazil to include the following:
- All of Espirito Santo State
- All of São Paulo State, including the city of São Paulo and all coastal islands
- All of Rio de Janeiro State, including the city of Rio de Janeiro and all coastal islands
- All of Paraná State
- All of Santa Catarina State
- All of Rio Grande do Sul State
- A number of cities in Bahia State