West Nile Virus
West Nile Virus (WNV) is transmitted through the bite of an infected mosquito. Most people infected with WNV do not show symptoms. Others can get fever, head and body aches, fatigue, rash, meningitis or encephalitis. Exposure to WNV can be prevented by reducing mosquito development sites (i.e., standing water) and using personal protection against mosquitoes.
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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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