The case now matches the one case the city uncovered in 2021 and keeps a trend of at least one case going for seven straight years. Of the 22 cases since 2016, six in consecutive years in 2017 and 2018 are the most human cases HPH has had to deal with. The city has not recorded any deaths from the affliction since monitoring began seven years ago. City officials raised the risk assessment for West Nile in late July after a batch of mosquitoes trapped from a swimming pool tested positive for the disease. Story continues below ad It was the first set of mosquitoes to test positive for Hamilton this year, moving the city’s risk rating from moderate to low.

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			Hamilton raises risk assessment for West Nile virus after batch of mosquitoes tests positive

“It’s important to take precautions to avoid insect-borne diseases, including West Nile virus, Lyme disease and eastern equine encephalitis,” said deputy health officer Dr. Bart Harvey in a release. Trending Stories

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He went on to recommend that residents use preventative measures such as using insect repellent containing DEET or Icaridin and wearing loose, light-colored clothing to reduce the risk outdoors. Harvey says about four out of five people infected with West Nile virus have no symptoms. The elderly and those with weakened immune systems are more susceptible to symptoms caused by an infection, including fever, or more serious illnesses, including inflammation of the brain or encephalitis. Typically, symptoms appear two to 14 days after being bitten by an infected mosquito. Despite the increased risk, the city has generally seen a decrease in positive mosquito reservoirs since reporting 32 positive reservoirs in 2017. So far in 2022, the city has encountered five confirmed West Nile virus reservoirs in its containment initiatives. Story continues below ad 0:27 Manitoba confirms 1st human case of West Nile virus Previous Video Next Video © 2022 Global News, a division of Corus Entertainment Inc.