Yellow Fever
Yellow fever is a mosquito-borne, viral infection, found in the tropical and subtropical areas of Africa and Central and South America. The virus is transmitted by the Aedes mosquito species, which are currently not established in Canada. All cases of yellow fever in Ontario are travel-related, and there is no human-to-human transmission. A vaccine is available to prevent the disease.
PHO Rounds: Respiratory Season 2026–27, Part 1: Surveillance and Testing of Respiratory Pathogens in Ontario
The first session will provide an overview of current epidemiological trends for COVID-19, influenza, and respiratory syncytial virus (RSV) activity in Ontario, Canada and internationally. The session also describes the planned approach to testing across the provincial laboratory network for respiratory viruses for the 2026–27 season.
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