I also considered donated milk until I did some extensive research. The newest research is that HPV 16 which causes cancer has been detected in bm. This is something that no blood test can detect. HPV shows no symptoms until cancerous cells show. HPV can also be linked to oral cancer and if baby gets in his mouth, he can get it. Pretty scary. New research from Berkely shows that flash pasturization can possibly kill HIV. So if that is the case, it could kill HPV and other viruses. I have used donor milk only from a friend that I know that only her and her husband have only had each other and no other partners.