COLUMBUS, Ohio (WTVN) --The Ohio Department of Health says the state's first two human cases of West Nile Virus this year have been found in a 24-year-old woman in Muskingum County and a 78-year-old woman in Cuyahoga County.

Both have been hospitalized with encephalitis. 

Encephalitis is an inflammation of the brain and is caused when someone is bitten by an infected mosquito. This is the primary way people get the West Nile Virus.

The Health Department says up to 120 West Nile Virus mosquito samples processed at its lab have tested positive.  In addition, another 10 positives reported by local health departments.

ODH says the relatively low infection rates may be influenced by the low temperatures and rainfall this year. 


 “We could possibly see a growing number of human cases of the West Nile Virus infection and positive mosquito samples throughout the state,” said ODH State Epidemiologist Dr. Mary DiOrio.  “Ohioans should remain vigilant and take all reasonable precautions to protect themselves against mosquito bites.”    

Here are some tips to avoid possible infection from mosquito bites: 

  •  If you are outdoors between dusk and dawn when mosquitoes are most active, be sure to wear long pants, a long-sleeved shirt, shoes and socks. 
  • Light colors are least attractive to mosquitoes. 
  • Use insect repellent and follow the label directions. 

Here are some tips to eliminate mosquito breeding sites near your home: 

  • Remove water-holding containers, such as tin cans and unused flower pots. 
  • Eliminate standing water. 
  • Make sure all roof gutters are properly draining and clean. 
  • Keep children’s wading pools empty and on their sides when they aren’t being used.
  • Approximately 80 percent of people who are infected with West Nile Virus do not show any symptoms at all, but there is no way to know in advance if you will develop an illness or not. Those who do develop symptoms usually do so between three to 14 days after they are bitten by the infected mosquito.

You can learn more about the West Nile Virus on the ODH website .