The multifaceted roles of breast milk antibodies

Summary Neonates are born with an immature immune system and rely on the transfer of immunity from their mothers. Maternal antibodies transferred via placenta breast milk. Although role placentally immunoglobulin G (IgG) is established, less known about selection milk mechanisms by which they provide protection against neonatal disease. Evidence suggests that play multifaceted roles, preventing infection supporting commensals tolerizing during infancy. Here, we discuss emerging data related to importance in development.