Human case of West Nile virus confirmed in Algoma for first time in six years

Public health officials are reminding residents to protect themselves from mosquitoes after a human case of West Nile virus (WNV) was confirmed in Algoma District.

Algoma Public Health says a crow also recently tested positive for WNV in Sault Ste. Marie.

The last time the virus was confirmed in Algoma was in 2018 when mosquitoes taken from a trap tested positive.  

"Mosquitoes acquire WNV by feeding on infected birds,” explained Algoma Public Health in a news release.

“The virus is then spread to humans and other mammals by the bite of an infected mosquito."

Officials say even though the risk is low, it’s a good idea to limit exposure to mosquitoes during peak season, which can be done by taking the following steps:

• Wearing light-coloured clothing, long-sleeved shirts, long pants, socks, and shoes when outdoors
• Using insect repellent containing DEET or Icaridin, and follow the directions carefully
• Avoiding the outdoors at dusk and dawn when mosquitoes are most active
• Repairing or replacing screens on windows and doors to avoid mosquitoes entering your home
• Removing standing water from your property where mosquitoes can breed

Most people who contract West Nile virus will not feel any symptoms, but around one in five may experience a minor illness including fever, headache, body ache, nausea, vomiting, and rash on the chest, stomach, or back. 

Symptoms usually start appearing between two and fifteen days after getting bitten.

“Severe symptoms are rare and are more likely to develop in elderly residents and those with immunocompromising conditions,” officials added. 

“Severe symptoms can include muscle weakness, stiff neck, confusion, tremors, numbness, and sudden sensitivity to light.”

Anyone who suspects they’ve contracted West Nile virus should contact their health care provider.