What can you do to protect your child from the endless array of germs and viruses he's exposed to every day? Unfortunately, in some ways, getting sick when you're a kid is simply part of the job description. "We all enter this world with an inexperienced immune system," says Charles Shubin, M.D., an associate professor of pediatrics at the University of Maryland, in Baltimore. Slowly, children prime their immunity by battling an ongoing series of germs, viruses, and other organisms -- which is why many pediatricians consider six to eight colds, bouts of flu, or ear infections per year normal. But there are healthy habits you can adopt that will give your child's immune system a boost.
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