The hypothesis that simian virus 40 (SV40) infected polio vaccines may be l
inked to the evolution of acquired immunodeficiency disorder (AIDS), and ce
rtain cancers, has been advanced. Most recently, investigators discussed th
e likelihood of gene-reshuffling following SV40 infection as a precursor to
acquired immune dysfunction. Findings of recent SV40 infections in four ch
ildren born after 1982 suggest infections were transmitted vertically along
gene lines. Earlier observations proved activation of a retrovirus gene by
a hepatitis B virus (HBV) protein. This paper proposes a new integrative t
heory on the origin of AIDS. It advances the possibility of genetic recombi
nations with oncogene activation by HBV involving simian viruses that likel
y infected polio vaccinated blood donors to the initial hepatitis B (HB) va
ccine trials conducted on gay men in New York City and Ugandan Blacks in th
e early to mid-1970s. The socio-economic and even military ramifications as
sociated with this politically challenging thesis are discussed. (C) 2001 H
arcourt Publishers Ltd.