Several animal and human studies57 have shown that zinc is crucial for immune function.
If you register, it's a FReebie.
My ex wife was a teacher. She brought every creeping crud known to man home from those kids. She got sick all the time, but I never did, because I take a zinc supplement with my vitamins every morning.
Zinc definitely works. I don’t know the best way to get it into my baby though. And my kids HATE the taste of zinc supps.