Human case of West Nile virus confirmed in Simcoe Muskoka
The year's first human case of West Nile has been confirmed in Simcoe Muskoka.
The Simcoe Muskoka District Health Unit (SMDHU) says recent laboratory results confirmed a positive human case of West Nile virus (WNv), prompting health experts to advise residents to protect themselves against mosquito bites.
The virus can be transmitted to humans via mosquito bite if the mosquito has initially bitten an infected bird.
- Download the CTV News app to get local alerts on your device
- Get the latest local updates sent to your email inbox
The health unit says residents should use an approved insect repellent, wear light-coloured clothing that covers arms and legs in areas where mosquitoes are present, and try to stay indoors from dusk to dawn when mosquitoes are most active.
Most people won't become sick if bitten by a mosquito, but the health unit warns that WNv can cause severe illness in some individuals.
Symptoms typically start between two to 14 days after being bitten, and can include fever, muscle weakness, stiff neck, confusion, severe headache and a sudden sensitivity to light, and in very rare cases, serious neurological illness.
Last month, the SMDHU said lab testing confirmed two dead birds, one in Oro-Medonte and the other in Bracebridge, were infected with the virus. The health unit said it was the first evidence of WNv reaching the region this summer.
Between June and the end of October, the City of Barrie works alongside the SMDHU, conducting a larviciding program to control larval mosquitoes to prevent their development into vectors of WNv.
The health unit did not provide details about where the individual contracted the virus.
Anyone experiencing symptoms of WNv should seek medical advice.
CTVNews.ca Top Stories

1 in 9 Canadian adults have had long-term symptoms from COVID infection: StatCan
Statistics Canada says about one in nine Canadian adults have had long-term symptoms from COVID-19 infection.
Canada is deporting more people faster, drawing concern from migrant advocates
Advocates are sounding the alarm on the rise in deportations in Canada and are calling on the federal government to follow through on its 2021 promise to expand a regularization program for undocumented people living in the country.
More wintry weather is on its way to Canada, with a big storm system closing in
Canadians should expect snow, freezing rain and more winter conditions this weekend as storms travel across the country.
Two charged with murder of Quebecer Daniel Langlois and partner in Dominica
The director of public prosecutions in the Caribbean nation of Dominica has confirmed that two men have been charged in the death of Quebecer Daniel Langlois and his partner.
More caffeinated energy drinks pulled from shelves: Here's what was recalled in Canada this week
Here's a list of items Health Canada and the Canadian Food Inspection Agency recalled this week, including mushrooms, more caffeinated energy drinks, and electric cooktops.
'Pseudoscience': Alberta's health minister under fire for naturopathic medicine meeting
Alberta's health minister is facing pushback after taking a meeting focused on naturopathic medicine's role in the province's primary care.
Judge rules in favour of NBA star, nullifies purchase of $8M Burlington mansion once occupied by 'crypto king'
A judge has ruled in favour of NBA star Shai Gilgeous-Alexander in his lawsuit against a company that sold him a Burlington mansion previously occupied by self-proclaimed ‘crypto king’ Aiden Pleterski.
NFL coach apologizes for crediting 9/11 hijackers for co-ordination in Buffalo Bills team meeting years ago
An emotional Buffalo Bills coach Sean McDermott acknowledged regret on Thursday for crediting the 9/11 hijackers for their co-ordination during a team meeting four years ago.
Six French teens await a verdict over their alleged roles in Islamic extremist killing of a teacher
A French juvenile court is handing down a verdict Friday for six teenagers accused of involvement in the killing of teacher Samuel Paty, who was beheaded by an Islamic extremist after he showed caricatures of the Prophet Muhammad to his class for a debate on freedom of expression.