Current hepatitis A outbreak

The Massachusetts Department of Public Health and local boards of health are tracking an outbreak of acute hepatitis A virus (HAV) infection in the Commonwealth. These cases are all individuals who have recent experience of homelessness, unstable housing, and/or substance use disorder. Public health interventions include increased healthcare awareness efforts, public notification and education, and support of vaccination clinics for high-risk populations.

Table of Contents

Outbreak epidemiology

Information on number and characteristics of outbreak-associated cases. Updated information will be posted weekly.

Date published: January 7, 2019