| epidemiology, production losses, and control measures associated with an outbreak of avian influenza subtype h7n2 in pennsylvania (1996-98). | an outbreak of h7n2 low-pathogenicity (lp) avian influenza (ai) occurred in a two-county area in pennsylvania from december of 1996 through april of 1998. the outbreak resulted in infection of 2,623,116 commercial birds on 25 premises encompassing 47 flocks. twenty-one (one premise with infection twice) of the twenty-five infected premises housed egg-laying chickens and one premise each had turkeys, layer pullets, quail, and a mixed backyard dealer flock. despite dose proximity of infected flock ... | 2003 | 14575105 |