West Nile Virus Program

The surveillance and control activities of the Berks County West Nile Virus Control Program begin in April and end in October of every year. Dead bird samples will not be collected prior to May 1st of each year.

For a current map of West Nile Virus activity in the state visit: WNV activity map

For information on WNV risk in your area, visit: WNV Hot Zones

Visit our BCCD WNV Facebook page for updates and additional information!


In 1999, West Nile Virus (WNV) was detected for the first time in the United States in New York City. This led to the startup of a multi-agency network for WNV surveillance and prevention in Pennsylvania. The Berks County Conservation District has participated in the state-funded WNV Program since 2000 when Pennsylvania started its program. WNV was first detected in Pennsylvania in 2000 and in Berks County in 2001.

Presently, the WNV Program is designed to reduce the risk of WNV and utilizes an Integrated Mosquito Management (IMM) strategy that includes education, surveillance, mosquito-breeding habitat reduction, natural controls, and application of larval and adult mosquito treatments. The WNV program runs from early April to late October, which coincides with the active mosquito season. WNV is typically transmitted by the bite of an infected mosquito.

Mosquitoes are trapped at many locations throughout the county. Mosquitoes species are identified and tested for the presence of WNV. The Conservation District utilizes  management techniques to help reduce mosquito populations and the incidence of WNV.


What You Can Do To Help!

Helping to prevent the spread of WNV is as simple as eliminating standing water from around your house and yard. Simple steps such as eliminating household items that can collect water can greatly reduce the potential risk of West Nile Virus in your area.  Old buckets, toys, tarps, and tires all hold enough water to keep mosquitoes alive and developing right under your nose.  Remember to keep rain gutters clear; check birdbaths, flowerpots, and wading pools.  The best and most effective way to prevent mosquitoes from breeding is to take care of your own house and yard. Following these practices takes away the environment the mosquito larvae need to live and grow – STAGNATE WATER! Reducing these breeding habitats helps to protect you and your family.


Any questions regarding the West Nile Virus Program in Berks County can be directed to the Berks County West Nile Virus Program Coordinator at 610-372-4657 Ext. 212.   

Other Sources of Information

·         PA Department of Environmental Protection  http://www.westnile.state.pa.us/

·         PA Department of Health http://www.health.state.pa.us 1-(877)-PA-HEALTH (724-3258)

·         Penn State Pesticide Education Program http://www.pested.psu.edu/issues/wnv/

·         Center for Disease Control http://www.cdc.gov/ncidod/dvbid/westnile/index.htm

·         American Mosquito Control Association http://www.mosquito.org

·         Rutgers University Entomology http://www-rci.rutgers.edu/~insects/disease.htm


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