Warning Issued in Ottawa!

Ottawa Public Health is on high alert as the city confirms its first human case of the West Nile virus this year. Alongside this troubling news, an Eastern Equine Encephalitis virus (EEEV) infection has also been detected in a local horse, prompting urgent warnings to protect against mosquito bites.

Understanding the Threat

Both West Nile and EEEV are transmitted through mosquito bites. While EEEV is less common, it can be deadlier, claiming the life of an Ottawa resident last year. OPH stresses that anyone engaging in outdoor activities in mosquito-prone areas should take precautions.

Symptoms and Severity

Most individuals bitten by an infected mosquito won't show symptoms, but West Nile can lead to serious illness in some cases. Around 20% of those infected may experience flu-like symptoms such as fever, headaches, and rashes. In rare cases, the virus can affect the central nervous system, particularly threatening older adults and immunocompromised individuals.

Current Statistics and Trends

Historically, West Nile virus peaks in late summer to early fall. Last year saw 13 confirmed human cases in Ottawa and 87 across Ontario. As of now, there have been 11 cases reported in the province this year excluding Ottawa's recent case.

What Is Eastern Equine Encephalitis?

Eastern Equine Encephalitis virus (EEEV) is particularly rare in humans but can cause severe illness. In fact, last year's local case was one of only four EEEV infections ever reported in the region. Transmission occurs primarily between wild birds and mosquitoes, with horses acting as intermediaries. Though human infections from horses are not possible, the presence of sick horses in the area signifies that infected mosquitoes are in circulation.

Stay Safe!

As the mosquito season continues, it’s crucial for residents of Ottawa to remain vigilant. Take proactive steps to minimize risks, such as using insect repellent and wearing protective clothing when outdoors.