Yellow fever in Brazil
Updated: March 10, 2017
Travel Health Notice
Yellow fever is a serious and occasionally fatal disease. It is caused by a virus which is spread to humans by infected mosquitoes. Yellow fever can be prevented by vaccination.
An outbreak of yellow fever is evolving in parts of Brazil. Suspected and confirmed cases have been reported in the following seven states:
- Bahia (new risk area)
- Espirito Santo (new risk area)
- Minas Gerais
- Rio Grande do Norte
- Sao Paulo
Yellow fever vaccination:
The yellow fever vaccine is recommended for anyone older than nine months who is travelling to areas in Brazil at risk of yellow fever transmission. (See map)
Consider not travelling to areas with a current outbreak if:
- You have never been vaccinated for yellow fever; or
- You cannot get vaccinated.
There is currently a shortage of the yellow fever vaccine in Canada. Contact a Yellow Fever Vaccination Centre six weeks or more before you travel, and make sure that the vaccine is available when making your appointment.
If you are receiving the vaccine for the first time:
- Get vaccinated at least ten days before you travel to Brazil. The vaccine takes ten days to take effect.
- You will be provided with written proof of yellow fever vaccination on the International Certificate of Vaccination or Prophylaxis.
Protect yourself from mosquito bites:
To minimize your risk, you should always take protective measures to avoid insect bites:
- Wear long sleeves and long pants to cover exposed skin;
- Use insect repellant on exposed skin.
Learn more about insect bite prevention
What to do if you become ill:
If you develop symptoms of yellow fever such as fever, chills, headache, muscle pain (mostly back pain), jaundice (yellowing of the skin and eyes), loss of appetite, nausea and vomiting:
- see your health care provider; and
- tell them where you have been travelling or living.
Information for Healthcare Professionals
The Committee to Advise on Tropical Medicine and Travel (CATMAT) has developed interim recommendations for the use of a fractional dose during a yellow fever vaccine shortage. This statement is for use during yellow fever vaccine shortages only.
Find the latest updates for international travellers on the Yellow fever vaccination recommendations page.
- Date modified: