Oregon has no reports so far of people contracting the virus. But it's still wise to cover up and prevent bites, health officials say.

Each summer and fall, Nebraskans become all too familiar with pesky mosquitoes. A bite from one of these pests can result not only in an annoying itch but also in potential exposure to the West Nile Virus.

Three dead birds in Sacramento County were found to have contracted the virus as activity ramped up in Placer County.