Health officials from Michigan and Kansas confirmed that the West Nile virus is back in the United States.

Three crows that died earlier this month in Michigan's Ingham County tested positive for the virus, according to the Detroit Free Press, and the Kansas Department of Health and Environment said that an adult in Lincoln County tested positively for the virus, reported the Washington Times.

The disease doesn't spread from person to person, but rather comes from bites by infected mosquitoes. Once infected, a person may exhibit symptoms like headache, fever, muscle weakness and confusion. In the worst cases, one can develop meningitis and other fatal neurological illnesses, according to the reports.

The virus usually thrives during summer months. Just one bite from an infected mosquito can cause an infection. "It's a virus, which means it can't be treated by antibiotics and there's no vaccine at this point," said Jennifer Smith from the Department of Health and Human Services in Michigan, via WILX.

Peak hours for mosquito bites occur between dusk and dawn, so make sure to not be outdoors at these times or lather on repellent if it cannot be avoided. Regular applications of mosquito repellent containing DEET and other EPA-approved ingredients provide protection.

Wooded or shaded areas are common places where mosquitoes love to lurk. Either avoid these areas or wear protective clothing, such as long pants and long-sleeved shirts, when visiting these places.

Empty flower pots, buckets, old tires, pet bowls and possible areas where mosquitoes can lay eggs. Keep backyards and other outdoor areas clean. Also, fix defective screens around the house and clean clogged gutters.

At least 200 cases of West Nile virus infections were recorded in Michigan in 2012, while only two cases existed in 2014, according to WILX. Meanwhile, Kansas had more than 54 cases last year, according to the Washington Times.