News - West Nile Virus

Manitoba Health reports that its mosquito surveillance program has identified this season’s first Culex tarsalis mosquito samples infected with West Nile virus.

While the cool spring has led to a slow start for Culex tarsalis mosquitoes, warm temperatures will accelerate mosquito development and the risk of exposure to West Nile virus (WNV).

Manitoba Health reports very low numbers of adult Culex tarsalis mosquitoes were trapped during the week of Sept, 5.

Manitoba Health reports low numbers of adult Culex tarsalis mosquitoes trapped during the week of Aug. 29.

Manitoba Health reports one mosquito sample tested positive for West Nile virus during the week of Aug. 22 to 28, in Morris.

Manitoba Health reports five mosquito samples tested positive for West Nile virus during the week of Aug. 15 to 21.

Manitoba Health reports three mosquito samples have tested positive for the West Nile virus during the week of Aug. 8 to 14.

Manitoba Health reports that seven mosquito samples have tested positive for the West Nile virus during the week of Aug. 1 to 7.

Manitoba Health reports an increase in the number of adult Culex tarsalis mosquitoes trapped during the week of July 25 throughout southern Manitoba, compared to the previous week.

Manitoba Health reports that for adult mosquitoes trapped during the week of July 18, there was an increase in the numbers of Culex tarsalis mosquitoes throughout southern Manitoba when compared to the previous week.