Pennsylvania's West Nile Control Program announced Tuesday that it has found six equine cases of West Nile Virus in the state, including one in Chester County.

The Chester County horse was located on a farm in West Caln Township, according to Chester County Communications Director Rebecca Brain. No other information about the horse's condition was immediately available.

The six counties with positive equine tests for West Nile Virus are:

• Berks
• Blair
• Chester
• Juniata
• York
• Lancaster

West Nile Virus has been found in mosquitoes in numerous Chester County towns. In July, a 59-year-old West Nottingham Township man became the first county resident since 2008 to be diagnosed with the virus.