Indianapolis, In. — State health officials are urging Indiana residents to take steps to protect themselves from mosquito bites amid an increase in West Nile virus activity across the state.As of August 6, one human case of West Nile virus disease has been detected in Vanderburgh County, and 168 mosquito samples in 27 Indiana counties have tested positive for West Nile virus. The Indiana State Department of Health (ISDH) expects to continue to see increased West Nile activity throughout the state as the mosquito season progresses.“This is the time of year when people are at greatest risk for West Nile virus disease,” said State Health Commissioner Kris Box, M.D., FACOG. “All Hoosiers should take precautions to prevent mosquito bites. You can also reduce the risk for yourself and your neighbors by eliminating mosquito breeding grounds from your property.”State health officials recommend the following preventive measures:Avoid being outdoors when mosquitoes are active (especially late afternoon, dusk to dawn and early morning)Use an EPA-registered insect repellent containing DEET, picaridin, IR3535, oil of lemon eucalyptus or para-menthane-diol on clothes and exposed skinCover exposed skin by wearing a hat, long sleeves and long pants in places where mosquitoes are especially active, such as wooded areasInstall or repair screens on windows and doors to keep mosquitoes out of the homeEven a container as small as a bottle cap can become a mosquito breeding ground, so residents should take the following steps to eliminate potential breeding grounds:Discard old tires, tin cans, ceramic pots or other containers that can hold waterRepair failed septic systemsDrill holes in the bottom of recycling containers left outdoorsKeep grass cut short and shrubbery trimmedClean clogged roof gutters, particularly if leaves tend to plug up the drainsFrequently replace the water in pet bowlsFlush ornamental fountains and birdbaths periodicallyAerate ornamental pools, or stock them with predatory fishWest Nile virus can cause West Nile fever, a mild form of the illness, which can result in fever, headache, body aches, swollen lymph glands or a rash. Some people will develop a more severe form of the disease affecting the nervous system, including inflammation in the brain and spinal cord, muscle paralysis or even death. People who think they may have West Nile virus should see their healthcare provider.To see the latest results of ISDH’s mosquito surveillance program click here.