Forgot to mention, I have a friend who was born @ 28 weeks, she is 36 now. When she was in the NICU her mum and the other mums would express and they'd put it all in a big vat and give each baby what they needed. She breastfeed's her daughter but was a little horrified at the idea..I said to her, wow that is probably why you are so healthy now. because you had all those women's antibodies..how wonderful..then she thought about and realised it was probably true..