An official website of the Commonwealth of Massachusetts
This page, 2021-2022 Season Weekly Flu Reports, is part of
This page, 2021-2022 Season Weekly Flu Reports, is offered by

Report 2021-2022 Season Weekly Flu Reports

Rates of flu and flu-like illness in Massachusetts.

Organization: Bureau of Infectious Disease and Laboratory Sciences Department of Public Health
Date published: October 29, 2021
Last updated: November 26, 2021


Each week throughout flu season (October-May) the Department publishes a Weekly Flu Report which indicates the impact of flu-like illness in Massachusetts. If you have additional questions about influenza activity or trends, please call (617) 983-6800 to speak with an epidemiologist.

View previous reports on the Archive of Seasonal Weekly Flu Reports.



Infectious Disease Division (617) 983-6550
Urgent calls and infectious disease reporting (617) 983–6800
Laboratory Sciences Division (617) 983–6201


Infectious Disease Division (617) 983–6925
Laboratory Sciences Division (617) 983–6210


State Public Health Laboratory
305 South Street
Jamaica Plain, MA 02130