According to a ProMED posting, authorities in Taiwan reported an outbreak of H5N1 avian influenza.  The index flock comprising 53,000 birds demonstrated clinical signs on June 29^th with confirmation on July 4^th.  Since a second farm under common ownership was in all probability infected, 44,000 chickens were depopulated on the neighboring location on July 6^th.  The National Reference Laboratory confirmed the infection as an H5N1 strain of clade 2.3.4.4b.  Following decontamination, a two-mile zone was designated for surveillance.