March 19, 2019

Mosquitoes with West Nile virus found in Louisville

03 August 2018, 09:31 | Randall Craig

The province said right now the risk of potential human exposure to West Nile virus is high

CTV Winnipeg West Nile virus found in sample

"These traps are tested weekly from June to September and with this recent confirmation of West Nile virus activity, we are increasing our efforts in the area surrounding the positive traps by looking for breeding sites and re-treating catch basins with larvicide", Paul Callanan, Director of Health Protection at the Region of Peel, said in a statement released Thursday.

West Nile is transmitted to humans through the bite of an infected mosquito.

Health department officials in Fairfax said the adult resident who contracted the disease lives in the northeastern part of the county.

Last year, Toronto Public Health did not record the first lab-confirmed case of West Nile virus until August 25.

For the first time in five years, mosquitoes have tested positive for the West Nile virus in Haldimand-Norfolk.

Fairfax County health officials said they've seen a "large increase" in mosquitoes carrying the virus.

The number of confirmed infections can vary from year to year. WNV infections are generally mild but can, in more serious cases, cause encephalitis, meningitis, loss of vision, paralysis, coma, tremors, convulsions and death.

According to the July 24 report, state officials have reported the virus in humans, mosquitoes, birds and sentinel and veterinary animals in a total of 36 states, including Alabama, California, Illinois, Louisiana, Maryland, Mississippi, Nebraska, New Mexico, North Carolina, North Dakota, Ohio, Oklahoma, South Dakota and Texas.

"Public Health thanks the community for being diligent in removing standing water and eliminating the places where mosquitoes can breed", Callanan said.

The most vulnerable to the virus are people age 50 and older and those who have weakened immune systems because of diseases such as diabetes and cancer. About 20% of people develop fever, headache, vomiting or a rash.

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