New avian flu viruses send U.S. scientists scrambling

By Julie Steenhuysen CHICAGO (Reuters) – Three highly pathogenic avian flu viruses that have infected poultry and wild birds in the U.S. Midwest appear unlikely to present a significant risk to humans. The H parts, which are highly pathogenic in poultry, originated in Asia, and the N parts come from North American, low pathogenic, avian flu viruses, said Dr. Rubin Donis, an associate director for policy and preparedness in the Centers for Disease Control and Prevention’s influenza division.
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