TORONTO – The Public Health Agency of Canada says this year\u2019s first human case of West Nile virus acquired within the country has been confirmed in Toronto. <\/p>\n
The confirmation comes after Toronto Public Health said its first laboratory-confirmed case of the virus in 2025 is an adult resident of the city with no travel history. <\/p>\n
The virus is transmitted to humans through infected mosquitoes.<\/p>\n
PHAC\u2019s West Nile surveillance report says that as of July 12, two other Canadian residents were infected this year while travelling outside of the country.<\/p>\n
Its surveillance map shows West Nile detections in two mosquito pools in Ontario and one in Manitoba as of that date.<\/p>\n
Toronto Public Health says symptoms usually begin between two to 14 days after a mosquito bite and can include fever, headache, nausea, vomiting, body aches, skin rash, swollen lymph glands or a stiff neck. <\/p>\n
It says older adults and people with compromised immune systems are at higher risk of severe illness.<\/p>\n
People can prevent infection by avoiding mosquito bites \u2014 wear light-coloured long sleeves and long pants, use Health Canada-approved insect repellent, put tight-fitting screens on all windows and get rid of standing water in buckets, planters, pool covers and other containers to eliminate mosquito breeding grounds.<\/p>\n","protected":false},"excerpt":{"rendered":"
TORONTO – The Public Health Agency of Canada says this year\u2019s first human case of West Nile virus acquired within the country has been confirmed in Toronto. <\/p>\n
The confirmation comes after Toronto Public Health said its first laboratory-confirmed case of the virus in 2025 is an adult resident of the city with no travel history. <\/p>\n
The virus is transmitted to humans through infected mosquitoes.<\/p>\n
PHAC\u2019s West Nile surveillance report says that as of July 12, two other Canadian residents were infected this year while travelling outside of the country.<\/p>\n