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Sarah Chalke, sitcom veteran (Scrubs, Roseanne) who returns to series TV in How to Live With Your Parents on April 6.

What: She’s the national spokeswoman for the American Lung Association’s Faces of Influenza campaign.

Why: “You want to create a wall of health around your kids.” Chalke, 36, says son Charlie, 3, cemented her passion to the cause. And “my dad still calls me every year when it’s flu shot time and asks: ‘Did you get your flu shot yet?’”

When: Now. Flu continues to peak through March. “One of the big misconceptions about the flu is that it’s just not a big deal, but there are 226,000 hospitalizations just from complications from the flu.”

How: Check out to find out where to get your shot.

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