A fifth crow infected with West Nile virus was found in Howard County last week, according to county health authorities.
The dead bird was found Aug. 27 in the 8100 block of Woodloo Road in Ellicott City, and it tested positive for the virus two days later, county health officials announced yesterday.
The four other infected birds found in Howard County were in Owen Brown and Long Reach villages in east Columbia. In addition, state investigators found a mosquito pool containing insects infected with the virus on Junction Drive in a Savage industrial park.
The disease can be transmitted to people by the bite of a mosquito infected with the virus. Mosquitoes also infect birds, which then spread the virus. The chance of human infection is very low and the average person experiences few or no symptoms, officials said. Most at risk are the very young and the very old. People who exhibit symptoms of the virus, which include weakness, confusion or fever, should seek medical attention, they said.