May 22, 2015


Local

West Nile detected in Morris mosquito traps

The province has found this season's first Culex tarsalis mosquito infected with the West Nile Virus.

So far, no human cases of West Nile virus have been found in Manitoba this season.

Culex tarsalis mosquitoes can carry West Nile virus.

Culex tarsalis mosquitoes can carry West Nile virus.

The infected mosquitoes were found during the week of July 7 in traps in Morris. The numbers of infected mosquitoes are predicted to be low and therefore there will be no order for mosquito control.

Most mosquitoes found in traps continue to be nuisance mosquitoes, which do not transmit West Nile virus. Culex tarsalis mosquitoes are highest in southcentral Manitoba and the potential for human exposure to infected mosquitoes is present throughout southern Manitoba.

The risk of exposure to West Nile virus is expected to increase in the coming weeks, particularly with the current hot, humid weather, which is ideal for Culex tarsalis development and activity.

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