MADISON, Wis. (AP) – Bug experts say an aggressive tick that can trigger a disease causing fever and fatigue has an increased presence in Wisconsin.  University of Wisconsin-Madison health officials say a person in Barron County has contracted a type of ehrlichiosis that is relatively new to the state.  UW-Madison entomology professor Susan Paskewitz says a dozen ticks have been found, despite no formal effort to find them. Paskewitz says there may actually be thousands and thousands of the ticks that are capable of making it through Wisconsin winters.  The State Journal ( ) says other cases of ehrlichiosis were reported in Chippewa County in 2008 and Eau Claire County in 2011. The disease can cause fever, fatigue, headache, muscle pain, confusion and a rash, among other symptoms.

—      Information from: Wisconsin State Journal,