Emerging viral diseases

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Figure 1
Figure 1

Possible mechanisms for generation of pandemic influenza viruses. [Reproduced with permission from ref. 9 (Copyright 1998, American Society for Microbiology).]

This Article

  1. Published online before print October 17, 2000, PNAS November 7, 2000 vol. 97 no. 23 12411-12412
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