PA's First Human Case of West Nile Virus Reported In Montgomery County, State Officials Say

Pennsylvania’s first probable human case of West Nile Virus infection in 2017 has been detected in a Montgomery County resident, state officials announced Tuesday. A report by the Intelligencer said the infected person is a Horsham resident, but the case has not yet been confirmed.

The Departments of Health and Environmental Protection, in announcing the possible human infection, strongly recommend that all residents minimize their exposure to mosquitoes.

“Detecting the first human case of West Nile Virus this year serves as a great reminder for Pennsylvanians to take the proper precautions when they are outside or near areas where mosquitoes are prevalent,” Acting Secretary of Health and Physician General Dr. Rachel Levine said. “There are some simple steps you can take to protect yourself and your loved ones from mosquito-related diseases.”

Although mosquitoes can bite at any time of the day or night, the mosquitoes that transmit West Nile virus are most active at dawn and dusk, state health officials said.

"When outdoors, people can avoid mosquito bites by properly and consistently using DEET-containing insect repellants and covering exposed skin with lightweight clothing. To keep mosquitoes from entering a home, make sure window and door screens are in place and are in good condition."

Additionally, the DEP does regular surveillance and control to manage mosquito populations around the state. So far, DEP has detected West Nile-infected mosquitoes in 36 counties, including Montgomery.

“DEP monitors the mosquito population across Pennsylvania,” said Secretary Patrick McDonnell. “Today’s announcement serves as a reminder that all Pennsylvanians should take precautions to protect against mosquitoes. Using a personal insect repellant or staying indoors during dawn and dusk will help prevent exposure to mosquitoes.”

Health officials advise the public that the mosquitoes that transmit the virus breed in areas with standing and stagnant water. "These areas can include urban catch basins, clogged gutters, discarded tires, poorly maintained swimming pools, flower pots and other types of plastic containers," an announcement from the state health department said.