LPO and breast cancer: The antimicrobial components like lactoferrin, lysozyme and lactoperoxidase, and the immunoglobulins provide passive immunity to the newborn, and the growth factors stimulate the growth of the gut.[17] Whole BC and immunoglobulin-enriched colostrum (hyperimmune bovine colostrum, HBC) fractions have been used in infants and immunocompromised adults to treat or prevent infections.[17,18] Knowledge on the effects of BC for treatment and prevention of infections in children is still very limited.