While the case count is relatively low, the state has started to pay attention to Jamestown Canyon virus because, for some time, mosquito habitats and the illnesses associated with the insects are expanding into new areas.

While West Nile remains the greatest mosquito-borne threat in Pennsylvania, state officials are monitoring another virus that has begun popping up in mosquito populations. Jamestown Canyon virus,

West Nile hasn’t been as much of a scourge as was feared in Minnesota after it was discovered in 2002 and caused 150 confirmed illnesses in 2003. Only 22 West Nile cases were reported in the ...