Ticks that carry Lyme disease have become active in Michigan with the recent unseasonably warm temperatures. The range for ticks has been expanding in Michigan for years, bringing with it a spike in Lyme disease cases.
Jean Tsao, an associate professor at Michigan State University's Department of Fisheries and Wildlife, said that a student brought in several ticks that were found on a dog in Lansing.
"The ticks that are out now are the black-legged adults. Those usually overwinter. But they can become active if you have several days that are warmer," says Tsao.