According to the Vermont Department of Health, an Erythema migrans (EM) rash occurs in 60%-80% of people infected with B. burgdorferi. Recent data shows incidence of EM rashes are decreasing in cases of confirmed Lyme disease in Vermont.
Not all Lyme rashes look like a “Bulls-Eye” and some people infected with Lyme bacteria do not get a rash.
The Vermont Department of Health’s 2014 Lyme Surveillance Report showed less than half of Vermont children with a confirmed case of Lyme disease had an EM rash. That year 67% of adults with confirmed Lyme disease in Vermont had an EM rash.