A Bucks County man has died from the West Nile virus.

The man became ill on Aug. 20, according to the Department of Environmental Protection, which reported the case on Friday.

The virus has sickened five other people in Pennsylvania this year including a woman in Philadelphia, a woman in Delaware County, two men in York County and a man in Montgomery County.

Officials are urging residents to be careful of places where standing water can accumulate. Mosquitoes get the virus from feeding on infected birds and then spread it to people they bite.

The virus is transmitted by mosquitoes, but officials say roughly 80 percent of people infected with West Nile virus will not become ill.

The federal Centers for Disease Control estimates that only 20 percent of those infected will develop West Nile fever, with mild symptoms including fever, headache, body aches, a skin rash on the chest or back and swollen lymph glands.

The Pennsylvania West Nile Control Program says that the virus has been found in 34 mosquito samples this year.

For a full list of Pennsylvania counties where West Nile virus has been found continue reading on NBC10 .