The Indiana State Department of Health has identified a fifth human flu case linked to hogs.
The health department said Wednesday the fifth case of variant influenza A was found in southern Indiana's Jackson County after four earlier cases were linked to the LaPorte County Fair in northwestern Indiana. The flu strain can be directly transmitted between swine and people, and human infections are most likely to occur in people who are near live infected pigs.
The health department says laboratory tests are pending on possibly more cases. Similar illnesses have occurred in Ohio, and federal health officials are investigating.
Indiana State Animal Health Board spokeswoman Denise Derrer says the Indiana State Fair will immediately turn away any hogs with temperatures above 105 degrees. The fair begins Friday in Indianapolis.