In reply to Dr Gonzalez's reply There are cases where Baby B is in danger from Mother A's milk where Baby A would thrive with it. If Mother A is CMV positive and has been throughout the pregnancy, her baby should have no problem with her milk. BUT, if Mother B is CMV negative and Baby B recieves Mother A's milk Baby B may have extreme problems because of this accident. He has no immunity from his mother and he is already a sick kid. CMV is a common viral infection. This is a real danger as much as we would all love to think no harm can ever come from mother's milk. Carla D'Anna (just north of Washington, DC)