This week's report


Highlights from this week's report:

  • There is still time to get a flu shot to ensure you are protected as flu activity continues.
    • To find a flu shot near you, call your health care provider, visit a local pharmacy, or search for flu vaccination locations at
  • Influenza-like illness activity in Massachusetts remains high this week and is consistent with activity levels normally seen at this time of year
  • Geographic spread is widespread: ILI activity and influenza laboratory confirmations are increased in all regions of the state.
  • Influenza-associated hospitalizations in Massachusetts remain elevated this week and are consistent with activity levels normally seen at this time of year.
  • The number of influenza positive laboratory tests reported to MDPH increased this week by 19.8%
  • For the 2018-2019 season to date, the predominant influenza strain is A/2009 H1N1; this may fluctuate as the season continues.
  • All influenza strains that have been characterized in Massachusetts this season to date are covered by the current influenza vaccine.
  • No resistance to antiviral medications has been detected this season.
  • Nationally, flu activity remains high, consistent with normal levels of activity at this time of year.
  • Additional data are available upon request and at

Additional Resources

Date published: February 15, 2019

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