Passive immunity in the lamb. Effects of a second feed of colostrum on antibody absorption from the first feed

Bone marrow cells from suddenly dying people can produce interferon in response to incoulation of an inducer. The interferon obtained in bone marrow cells did not differ by its properties from the reference preparation. the lots of bone marrow interferon which had been prepared were not inferior in the antiviral activity to leukocyte interferon or were even superior to it. It is suggested that bone marrow cells be used for preparation of human interferon.