My new Riordan :-) says that that breastfeeding can stimulate an active immune response. Page 117. Riordan mentions how babies can develop active immunity if mom receives a vaccine like polio virus or rubella Baby also can develop immunity to CMV present in breastmilk. Breastfed babies also experience enhanced immune response to vaccines. (and no we will not discuss the pros and cons of vaccines on Lactnet :-) Sincerely, Pat in SNJ *********************************************** To temporarily stop your subscription: set lactnet nomail To start it again: set lactnet mail (or digest) To unsubscribe: unsubscribe lactnet All commands go to [log in to unmask] The LACTNET mailing list is powered by L-Soft's renowned LISTSERV(R) list management software together with L-Soft's LSMTP(R) mailer for lightning fast mail delivery. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html