©2015 Nokia Terms of use, © CARTO


Confirmed cases

Confirmed incidence rate (per 100,000)

Probable cases

Lyme disease in Massachusetts
Hover your mouse over a city to see confirmed and probable Lyme disease cases for 2013. Shading shows the incidence rate of confirmed cases per 100,000 people.
Map created by New England Center for Investigative Reporting New England Center for Investigative Reporting