Toronto confirms first human West Nile virus case of the year

Toronto has confirmed its first human case of West Nile virus this year, with an adult resident testing positive. Toronto Public Health announced the case on Thursday, though no further details about the individual's condition were released.

This development comes as West Nile virus has been detected in mosquito pools across several Ontario communities, including Toronto, Windsor-Essex, Belleville, York Region, and Halton Region. The virus spreads to humans through the bite of an infected mosquito.

“

Usually people will feel sick with a headache, fever and chills for a few days and then recover.

Symptoms of West Nile virus typically appear two to 14 days after a bite and can include fever, headache, nausea, vomiting, body aches, a skin rash, swollen lymph glands, and a stiff neck. Older adults and individuals with weakened immune systems face a higher risk of severe illness.

Infectious diseases specialist Dr. Isaac Bogoch noted that West Nile virus detections are common for this time of year. While most infections cause mild, flu-like symptoms, he cautioned that a small percentage can lead to more serious neurological problems. Public health officials continue to urge residents to take precautions to avoid mosquito bites while enjoying outdoor activities.

“

In some cases, it can cause neuromuscular manifestations and other nerve-related problems.