Western Nile Virus Case Confirmed in Ottawa
- Public health officials in Ottawa have detected both West Nile Virus and Eastern Equine Encephalitis (EEE) within the city limits.
- The detection of EEE was confirmed in an Ottawa horse, while West Nile Virus has been identified in the mosquito population.
- West Nile Virus (WNV) is a mosquito-borne disease that can cause flu-like symptoms, including fever, headache, body aches, nausea, vomiting, and sometimes a rash.
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Mosquito-Borne Illnesses Detected in Ottawa: West Nile Virus and Eastern Equine Encephalitis
Table of Contents
Updated August 27,2024,at 21:06 EST
overview
Public health officials in Ottawa have detected both West Nile Virus and Eastern Equine Encephalitis (EEE) within the city limits. The presence of these viruses, transmitted by mosquito bites, poses a risk to residents, even though most infections are mild. Though, both viruses can, in rare cases, lead to severe neurological illness.
The detection of EEE was confirmed in an Ottawa horse, while West Nile Virus has been identified in the mosquito population. Last year, Ottawa experienced a fatality from EEE, highlighting the potential severity of the disease.
Understanding the Risks
West Nile Virus
West Nile Virus (WNV) is a mosquito-borne disease that can cause flu-like symptoms, including fever, headache, body aches, nausea, vomiting, and sometimes a rash. Approximately 80% of people infected wiht WNV do not develop any symptoms according to the Public Health Agency of Canada. However, in a small percentage of cases, WNV can lead to neurological illness such as encephalitis or meningitis.
Eastern Equine Encephalitis
Eastern Equine Encephalitis (EEE) is a rare but serious mosquito-borne illness. Symptoms typically appear 4 to 10 days after a bite from an infected mosquito and include high fever, severe headache, stiff neck, disorientation, and seizures. EEE has a significantly higher fatality rate than West Nile Virus; approximately 30% of people who develop EEE die, and many survivors experience long-term neurological problems according to the Centers for Disease Control and prevention.
Who is at Risk?
Ottawa Public Health states that anyone who lives, works, or spends time outdoors in areas where mosquitoes are present is perhaps at risk of contracting these viruses. Mosquitoes are most active during dusk and dawn, but can bite at any time of day.
Certain factors can increase your risk, including:
- Spending meaningful time outdoors, especially in wooded or marshy areas.
- Having limited access to screened housing.
- Not using personal protective measures against mosquito bites.
Prevention Measures
Ottawa Public Health emphasizes that protecting yourself from mosquito bites is the most effective way to prevent these illnesses.
- Use Insect Repellent: Apply Health Canada-approved insect repellent containing DEET or icaridine to exposed skin and clothing.Follow the manufacturerS instructions carefully.
- wear Protective Clothing: When outdoors,wear light-colored,loose-fitting clothing that covers as much skin as possible,including long sleeves,long pants,socks,and a hat.
- Screen your Home: Ensure that all windows and doors in your home are equipped with well-maintained mosquito screens.
- Eliminate Standing Water: Regularly eliminate or empty standing water around your property, as mosquitoes breed in stagnant water. This includes bird baths, flower pot saucers, swimming pool covers, gutters, and any other containers that can collect water. Empty and scrub these items at least once a week.
Recent Cases and Timeline
August 2024: West nile Virus detected in Ottawa mosquito population and Eastern Equine Encephalitis detected in an Ottawa horse.
2023: An Ottawa resident died after contracting Eastern Equine Encephalitis.
The detection of these viruses is typical for this time of year, but serves as a reminder to take preventative measures.