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Experts Fight H5N1 Bird Flu Using Sanofi-Aventis K.K.'s Smallpox Vaccine, University of Hong Kong Study  
3/2/2009 7:37:54 AM

HONG KONG, March 1 (Reuters) - Scientists in Hong Kong and the United States have developed an experimental H5N1 bird flu vaccine for people by piggybacking it on the well-tested and highly successful smallpox vaccine.
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