According to the state Department of Public Health, several Massachusetts counties remain undervaccinated, including Hampshire and Franklin.
Western Massachusetts has some of the highest rates of vaccine refusal in the state — especially Hampshire, Franklin, and Berkshire Counties. Health experts say pockets of under vaccination are most vulnerable to disease outbreaks.
Baystate Medical Center in Springfield tries to contain the impact of the first measles case in Western Massachusetts in decades.
The Massachusetts Department of Public Health has announced two cases of measles in Boston-area hospitals.