Will so many shots harm my baby?
Not at all. When infants are born, they are moving from a sterile environment (the womb) to the outside world, which is teeming with microbes. Within hours of birth, babies house bacteria in their intestines, which they've picked up from breathing, sucking, and swallowing; in turn, their body manufactures antibodies to keep the bacteria from causing infection. Newborns and infants have the capacity to form millions of different protective antibodies, but vaccines don't use up that potential.