West Nile virus cases are climbing in Pennsylvania. With two human cases reported, officials encourage taking steps to prevent mosquito bites, and ultimately, infection.

The Berks County Conservation District is warning residents after West Nile virus was detected in Shillington and Reading, Pennsylvania.

After mosquitoes in Dodge County were found to carry West Nile virus last week, we now know of two mosquito samples that tested positive near the Omaha metro.