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Nature 460, 470-471 (23 July 2009) | doi:10.1038/460470a; Published online 22 July 2009

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Infectious diseases: An ill wind for wild chimps?

Robin A. Weiss1 & Jonathan L. Heeney2

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Simian immunodeficiency virus is associated with increased mortality in a subspecies of chimpanzee living under natural conditions in East Africa. This is worrying news for the chimpanzee populations involved.

Today's pandemic strain of HIV-1 crossed the species barrier from chimpanzees (Pan troglodytes) to humans less than 100 years ago. Until now, it has been widely assumed that the precursor of HIV-1, chimpanzee simian immunodeficiency virus (SIVcpz), causes little, if any, illness in its animal host.

  1. Robin A. Weiss is in the Division of Infection and Immunity, University College London, London W1T 4JF, UK.
    Email: r.weiss@ucl.ac.uk
  2. Jonathan L. Heeney is in the Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK.
    Email: jlh66@cam.ac.uk

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