I only asked because I coach a volleyball team with 12 12-year olds and in the past 3ish weeks, 10 of them have been out sick. I've avoided it and I'm wondering if I have the shot to thank.I'm glad you asked, because I was curious too! My husband works in healthcare, so we always get ours, kids included. No flu (yet?) in our house, but we've been really careful about handwashing, not to mention I mask when teaching and our oldest masks at schools due to being immunocompromised. I do know that one of my husband's coworkers had the flu in December and felt pretty crummy despite getting a flu shot, but I don't think it knocked him out as long as some as some folks were saying here.