How Do I Boost My Child’s Immune System? How Do I Boost My Child’s Immune System? Dr. Brent Williams, MD, PhD, FRCPC, FAAP2021-07-07T12:45:08-04:00 First, when people speak of ‘boosting’ the immune system, this usually means to prevent or limit common or serious infections. How Do I Boost My Child’s Immune System?Dr. Brent Williams, MD, PhD, FRCPC, FAAP2021-07-07T12:45:08-04:00