The Centers for Disease Control (CDC) released a report this year that shows that tick-transmitted Lyme disease has greatly expanded in the last decade. The number of counties in northeastern states where there is a high incidence of Lyme disease has increased more than 320 percent over the last decade.
And Lyme disease has become an increasingly common problem not just in the northeast—high-risk counties can now be found going west to Wisconsin, Minnesota, and Iowa, and south to Virginia. Lyme disease is also a problem in southern and western states.
