Abstract
In March 1995, 1.27% of broilers examined from a flock showed bleeding in the legs, and anavian reovirus was isolated from tendon with tenosynovitis. The isolate killed all specific-pathogen-free (SPF) chicken embryos after inoculation into the yolk sac with 10-104plaque forming units (PFU), and 7 of 8 8-day-old SPF chicks showed tenosynovitis after inoculation with 106 PFU into the pad. Sera from this flock showed neutralizing antibody titers of 1: 274, and 1: 2, 694 to TS-142 and the isolate, respectively. Six of 17 near by broiler flocks as well as all 38 layer flocks examined, were infected showing serum neutralizing antibody titers of 1: 20 to 1: 1, 280≤.