But usually, our bodies benefit most from fighting off an infection by itself, so that it can fortify itself against future infections by producing necessary antibodies. (romper.com)
Just as breast milk provides your baby with necessary antibodies to fight off infection, it can also work to kill off bacteria and viruses when applied topically to problem areas. (pregnancy-info.net)
Scientists think that at each feed, a small amount of your baby's saliva is absorbed into your body, if any bacteria or viruses are discovered, your body will start producing the necessary antibodies and these will be delivered to your baby via breast milk. (health-and-parenting.com)