VECTOR

Bite from an mosquito, primarily Aedes or Haemagogus species

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UP TO 170,000 SEVERE CASES

Based on a modeling study, up to 170,000 severe cases. Worldwide (estimated in 2013).

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SYMPTOMS

Fever, muscle pain with prominent backache, headache, chills, loss of appetite, nausea or vomiting.

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​Most patients improve after the initial presentation. After a brief remission of hours to a day, approximately 15% of patients progress to a more serious toxic form of a disease.

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SEVERE CASE:

High Fever, with the liver and kidneys affected, jaundice, dark urine, abdominal pain with vomiting, bleeding from the mouth, nose, eyes or stomach, and eventually shock and multisystem organ failure.

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​Precautions against yellow fever, including avoiding mosquito bites and vaccination, should be considered:

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• Vaccination.
• Vaccination certification may be required depending on destination.
• Take preventive measures when mosquitoes are most active (during daylight hours).
• All diagnoses of yellow fever made in Canada are required to be reported to public health authorities.
• Use a recommend insect repellent containing either Picaridin (20%) or DEET.
• Wear appropriate clothing (e.g. long-sleeved shirt, long pants).
• Use physical barriers, such as bed nets and window screens.
• ​Infected patients should be protected from further mosquito exposure during the first few days of illness to avoid contributing to the transmission cycle.

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