Pennsylvania health officials have reported the first probable human cases of West Nile virus in 2013.
The Department of Health said Friday that a Montgomery County man was treated for West Nile infection, while a York County man also tested positive but did not require hospitalization.
The state Department of Environmental Protection says Pennsylvania is seeing localized outbreaks of West Nile in the mosquito population this year, as opposed to last year's statewide outbreak. DEP has detected West Nile-infected mosquitoes in 36 counties, though it's likely the virus is present elsewhere in the state.
Last year was the worst ever for West Nile deaths nationwide, with 286 people killed.
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