Weekly Flu Report, December 13, 2019

Massachusetts Department of Public Health weekly influenza update

Table of Contents

This week's report

View the current weekly flu report.


  • Influenza severity for Massachusetts is low this week.
  • Overall influenza-like illness activity for Massachusetts is increasing and is higher than the previous two years in the same week. The central region is reporting moderate ILI activity while all other regions are reporting minimal to low ILI activity.
  • The percent of influenza-associated hospitalizations in Massachusetts is low and comparable to the last two flu seasons in the same week.
  • In the 2019-2020 flu season, a comparable number of influenza A and influenza B positive specimens have been reported by hospitals and outpatient facilities in Massachusetts.
  • Nationally, influenza illness activity is increasing and is being caused mostly by influenza B viruses.
  • Additional statewide and national data including geographic spread, ILI activity, and pneumonia and influenza mortality are available at CDC’s FluView Weekly Report at www.cdc.gov/flu/weekly and FluView Interactive https://www.cdc.gov/flu/weekly/fluviewinteractive.htm

 Flu season has begun and the best time to get your flu shot is now!

Additional Resources

Date published: December 13, 2019

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