Jens H. Kuhn, MD, ScD, MS
New England Primate Research Center
Harvard Medical School
Southborough, MA, USA

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© 2008 Springer-Verlag=Wien
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Cover image: Courtesy of Thomas W. Geisbert

Typesetting and database programming: Thomson Press (India) Ltd., Chennai
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SPIN: 10974742

With 72, partly coloured Figures

CIP data applied for

ISSN 0939-1983
ISBN 978-3-211-20670-6 SpringerWienNewYork