Other benefits of this early breastfeeding experience include helping the infant feel more secure, reducing infant mortality through the numerous immunological properties of human milk, and encouraging a longer period of breastfeeding. (breastcrawl.org)
Expressed milk whilst containing immunological properties does not have this real time immunity. (aimsireland.ie)
«Colostrum... has concentrated immunological properties that contain high concentrations of secretory immunoglobulin A, or slgA, an anti-infective agent that coats [the baby's] intestines to protect against the passage of germs and foreign proteins that can create allergic sensitivities. (attachmentparenting.org)