West Nile virus cases have been confirmed in the states of Iowa and Utah, and New Jersey is taking preventative measures to ward off the disease.

There is one human case of West Nile in Salt Lake County, the Salt Lake Tribune reported, along with a horse case in Iron County.

No mosquito pools have tested positive in Salt Lake County, Salt Lake Valley Health Department spokesperson Nicholas Rupp said, the SLT reported.

He also noted that the adult who tested positive has a mild form of the West Nile virus, the SLT reported.

An adult male in Iowa from Pottawattamie County is recovering from the disease, The Gazette reported.

Although summer is the season most typically associated with mosquitoes, the West Nile virus season in Iowa usually lasts until the first frost, Iowa's Department of Public Health medical director Patricia Quinlisk said, The Gazette reported. If mosquitoes are still flying, there is still a danger from West Nile virus.

New Jersey is bracing itself for West Nile season.

The Burlington County Division of Mosquito Control said that mosquito traps placed in Hainesport and Southampton have turned up positive samples of the virus, the Web site phillyBurbs.com reported.

Authorities are planning to spray the areas of Wharton Place in Hainesport and Buddtown Road in Southampton Thursday evening, the Web site reported.

The Centers for Disease Control and Prevention recommend wearing protective clothing, being extra cautious during mosquito peak hours, which are from dusk to dawn, and draining standing water.