The Department of Environmental Protection has announced nearly $2.1 million in West Nile virus control program grants have been awarded to 26 counties, including $98,382 to Lehigh County.

"These county grants ensure that mosquito populations stay in check to prevent the spread of West Nile virus," DEP Secretary E. Christopher Abruzzo said. "Locallybased programs play an important role in protecting the public from this perennial problem."

The funding is used to cover the costs associated with surveying and controlling mosquitoes that carry West Nile virus.

Mosquito control is largely done by using larval control products, such as Bti, derived from soil bacteria.

If necessary, man-made adult mosquito control products derived from the chrysanthemum flower are used to reduce mosquito populations when they pose an elevated risk of infecting people.

Adult mosquito control products are effective in controlling mosquito populations and pose little to no harmful effect to humans, plants or other animals.

Last year DEP detected 1,213 mosquito samples, 28 avian specimens, two horses and 11 humans infected with the virus in Pennsylvania.

In humans, the virus can cause West Nile fever and encephalitis, an infection that can cause inflammation of the brain and death.

Most people bitten by an infected mosquito will never develop any symptoms, and only one person in 150 people with symptoms will develop the more serious West Nile encephalitis.

Residents are encouraged to remove all standing water from their property to prepare for mosquito season and prevent infection.

To report a dead bird, file a mosquito complaint or for more information about West Nile virus, visit westnile.state.pa.us or call 717-346-8243.