By paNOW

Peak season for mosquitoes

Aug 5, 2017 | 10:06 AM

As residents make a break for the lake or even head outdoors over August long weekend, the province is reminding people to be vigilant for mosquitos.

In a recent media release, health officials said late July and the August are the peak times for the mosquitoes (Culex tarsalis) which carry West Nile virus (WNV) as during this time, they are most active and present in higher numbers.

WNV positive mosquitoes were found in the province for the week of Aug. 5, according to government testing. There have been two positive lab tests this year.

Most people who become infected with WNV experience no symptoms and do not get sick. 

Around 20 per cent of people who become infected with WNV will develop a fever and other symptoms such as headache, body aches, joint pains, vomiting, diarrhea or rash. Most people with this type of WNV recover completely, though fatigue and weakness can last for weeks or months.

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Less than one per cent of people infected will develop a more serious illness such as encephalitis or meningitis (inflammation of the brain or surrounding tissues). Symptoms of WNV neuroinvasive disease can include headache, high fever, neck stiffness, disorientation, coma, tremors, seizures or paralysis.

Recovery can take several weeks or months and some of the neurologic effects may be permanent. Around 10 percent of people who develop a neurologic infection from WNV will die.

As such, people are advised to take precautions when outside and around areas where mosquitos could be present.

One can protect themselves by covering up and wearing repellents or reducing the amount of time spent outdoors.  Mosquitoes can be active any time of day but are most active in the evening and throughout the night.

Repellents with DEET that have a concentration no higher than 30 per cent for adults and  10 per cent for children can be most effective on exposed skin. However, repellents with Icaridin and oil of lemon eucalyptus are also effective. 

Residents should also clear yards of items that collect water, regularly clean and empty bird baths and eavestrough and ensure rain barrels are covered with mosquito screen or are tightly sealed. People can also keep bushes, shrubs and lawns clear of overgrowth and make sure door and window screens fit tightly and are free of holes.

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