Important Notice Regarding the Yellow Fever Vaccine

What is Yellow Fever?

Yellow Fever is a disease caused by a flavivirus that is transmitted by the bite of an infected mosquito. It gets its name from the yellowing of the skin and eyes (jaundice) that occurs when the virus attacks the liver. Yellow fever can be prevented by a yellow fever vaccine.

What is my risk?

• Your risk can depend on many factors including your destination, the time of year (season), the length of your trip, and the types of activities you participate in.


• The risk is low for most travelers, but it may be higher for those who are going to areas of risk and who are staying for an extended period of time, visiting rural or jungle areas, or participating in outdoor activities such as camping, hiking, cycling or fieldwork.

How is it transmitted?

• Yellow fever is spread through the bite of infected mosquitoes, mainly the Aedesspecies in Africa and the Haemagogus species in South America. It is recommended to have the yellow fever vaccine before traveling to these countries.


• Mosquitoes that spread yellow fever typically bite during the daytime, particularly around sunrise and sunset.

What are the symptoms?

• Symptoms can take 3 to 6 days to appear.


• Initial symptoms usually include sudden onset of fever, chills, headache, joint and muscle pain, loss of appetite, abdominal pain, back pain, nausea and vomiting, fatigue, weakness and dehydration. Most patients recover after this stage.


• In severe cases, the disease can lead to shock, internal bleeding, jaundice (yellowing of the skin and whites of the eyes) and organ failure. This occurs in about

Can yellow fever be treated?

There is no specific treatment for yellow fever, only supportive care to help relieve symptoms. It can be prevented by getting the yellow fever vaccine in advance. We provide yellow fever vaccination in our clinics in Toronto, North York, Etobicoke, Mississauga, Richmond Hill Ontario.

contact us

(416) 461-2419

visit: https://travelvaccineclinic.ca/vaccinations/yellow-fever/