More Mosquitoes? Why Canadians are on the move this summer and beyond – National IG News

Irshadgul News report,

Are more mosquitoes bothering you this summer? you are not alone

Canada is buzzing with strange insects as parts of the country are seeing higher-than-normal numbers due to moist, warm weather, raising concerns for related diseases, particularly West Nile virus in humans.

“It certainly seems … that this is a big year for mosquitoes,” said Manisha Kulkarni, a medical entomologist and associate professor at the University of Ottawa.

“We had a warm, wet spring, which helps with the spread of mosquitoes in the early season and accompanied by humidity and high temperatures, which are likely to continue into the summer months.”

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Warmer weather amid climate change means Canada could be in for a longer mosquito season, which typically runs from May to October each year, experts say.

And if mosquitoes are active for a large part of the year, it poses a “major risk” to humans, wildlife and animals susceptible to mosquito-borne diseases, Kulkarni said.

“With climate change, the models and estimates are just that we’re going to see more and more areas of these mosquito populations expanding farther north.”

Click to play video: 'Metro Vancouver buzzes with mosquito complaints'

Metro Vancouver buzzing with complaints of mosquitoes

Metro Vancouver buzzing with mosquito complaints – July 12, 2022

A study published last year in the Lancet predicted that rising global average temperatures would increase the climate suitability of malaria and dengue, particularly in areas already endemic in the African region, the Americas and the eastern Mediterranean.

The 2021 study showed that the population at risk of both diseases could increase to 4.7 billion people by 2070.

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Globalization and the climate crisis have also led to new vectors entering Canada that did not exist before, said Rosalind Murray, an assistant professor in the department of biology at the University of Toronto in Mississauga.

“We are starting to see new species of mosquitoes and with those species, we can start to see new diseases that they can carry or transmit different types of diseases,” she said.

According to the Public Health Agency of Canada (PHAC), national mosquito surveillance data for this year is not currently available.

With data still to be collected at the local and provincial levels, Murray said it is too early to know mid-season whether there are more mosquitoes in Canada this year. But some signs point to an increase in activity.

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In British Columbia, low-mainland observers say heavy and prolonged rains have given rise to more mosquitoes this summer.

Due to excess rain in the city of Regina, the mosquito population has almost tripled from last month’s historical average. That number has since dropped, according to the city’s latest figures.

Experts say the peak of activity depends on local conditions and the type of species.

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Provincial government says mosquitoes carrying West Nile virus have been found in Manitoba

Provincial government says mosquitoes carrying West Nile virus have been found in Manitoba – July 21, 2022

Kulkarni said August is a big month for the main vectors that carry West Nile virus – a mosquito-borne virus that can cause serious illness.

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They said they breed in standing water, such as in rain gutters, bird baths or plant pots.

Local and provincial jurisdictions monitor mosquito activity by tracking West Nile virus and other mosquito-borne diseases.

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Last week, the province of Manitoba this summer confirmed its first human case of West Nile virus, which is endemic in parts of Canada.

Locally acquired cases occur in Alberta, Saskatchewan, Manitoba, Ontario and Quebec.

Kulkarni said, “Once we start looking at those positive pools for the number of mosquitoes that are testing positive for West Nile virus collected at different locations, then we can also start active mosquito control in the areas.” begin to happen.”

In 2021, 35 human cases were reported to PHAC across Canada. In 2020, there were 163.

Experts say that some people are more attractive targets for mosquitoes than others.

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In addition to individual characteristics, such as the number of bacterial colonies on your skin and the amount of carbon dioxide we produce, behavior also makes a difference.

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“The more we are breathing, being active, waving around, we actually attract more mosquitoes,” Kulkarni said.

Wearing dark clothing attracts some insect species, including mosquitoes, which is why it is advisable to wear light colored and thick clothing.

Drinking alcohol also makes you a juicy target, said Viktor Shegelsky, a lecturer in biological sciences at the University of Alberta.

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Bringing Facts to the Mosquito Myths

Expose the myths related to mosquitoes – July 29, 2022

While an encounter with pesky insects is inevitable, there are measures people can take to protect themselves, including the use of repellent.

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Murray recommends using repellents that contain DEET.

“They are most active at dusk and dawn, so this is the most important time to make sure you are covered,” she said.

Murray and Kulkarni both warned against standing water around your property, which is a breeding ground for mosquitoes.

“They can actually breed in very small amounts of water, so if there’s something left for more than a few days, you want to make sure it’s emptied,” Kulkarni said.

© 2022 Global News, a division of Corus Entertainment Inc.

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