WHO announces smallpox is eradicated, the last fatal case of smallpox being reported in 1978.
Blumberg develops Hepatitis B diagnostic test (pictured).
Pestka clones interferons.
Benacerraf, Dausset & Snell: Nobel Prize in Physiology/Medicine for elucidation of histocompatibility antigens & their role in transplant rejection.
Berg (‘father of genetic engineering’), Gilbert & Sanger: Nobel Prize in Chemistry for biochemistry of nucleic acids & determination of base sequences in nucleic acids.