As the summer reaches peak West Nile risk, 40% more mosquitoes are buzzing around Toronto this year, relative to last, according to estimates provided by Toronto Public Health.
"The message has to be that we are at peak-risk period," said Dr. Mike Drebot, chief of the viral zoonoses section at the National Microbiology Laboratory. "Until the first frost, there could be mosquitoes flying around that could be carrying the virus."