SPRINGFIELD, MA (WGGB/WSHM) -- Influenza-like illness activity increased last week across Massachusetts, according to the state Department of Public Health’s weekly flu update, with one local doctor warning this may be only the tip of the iceberg.

Dr. John Kelley of Redwood Pediatrics in East Longmeadow said he treated four sick visits during one morning this week, with three of the four patients testing positive for influenza A. “Today I had four sick visits this morning, along with a lot of checkups, and three out of four of those had influenza A,” he explained.

Kelley noted that he is seeing more flu cases this week compared to recent years. Flu-like illness visits are up more than four percent in the Bay State when compared to last week, which is double the rate from the last week of November. The timing of the virus surge presents challenges for holiday gatherings, Kelley said. “Unfortunately, you might need to avoid a large family gathering if you’re not feeling well, especially if you have anyone that’s elderly in your family or immunocompromised,” he added.

For those planning holiday gatherings, flu shots remain recommended, but may not provide protection in time for Christmas celebrations. “Usually, influenza vaccines or most vaccines take about two weeks before they’re going to become effective, so the cat’s out of the bag for the holiday next week, at least,” Kelley explained.

Kelley recommended staying away from others when feeling ill. For those with minor symptoms, he suggested wearing a mask during large group gatherings would be reasonable.

The number of influenza deaths in Massachusetts this flu season has reached 13, according to health officials.

For those starting to feel sick, Kelley advised contacting a primary care doctor about antiviral medication. He recommended staying hydrated, getting rest, monitoring for breathing problems or high fever, and wearing a mask or staying home when in doubt.

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