COVID-19 is Low in Worcester, and High in Boston.
Flu is Moderate in Worcester, and Very High in Boston.
RSV is Low in Worcester, and Very High in Boston.
Infectious Diseases is Moderate in Worcester, and Very High in Boston.
Allergy is Low in Boston, and Very High in Worcester.
Pollution is Low in Boston and Worcester.
Severe Weather is Moderate in Worcester, and Very High in Boston.
Last updated: April 20, 2026
Data refreshed weekly