It is often advised to keep a sterile environment for babies by sterilizing bottles and binkies, as well as regular hand washing.  Many antibacterial soaps and wipes are marketed to children, parents, and caregivers.  In addition, the majority of children are vaccinated against several serious viruses and bacteria before the age of 3. A new study asks a poignant question: by removing all bacteria, are we actually weakening an infant’s immune system?

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