| sources of streptococcus dysgalactiae in english and welsh sheep flocks affected by infectious arthritis (joint ill). | in order to investigate sheep sources of streptococcus dysgalactiae in flocks affected with joint ill, 10 sheep flocks in england and wales with laboratory-confirmed cases of infectious arthritis (joint ill) caused by s dysgalactiae were visited during a disease outbreak while a further four flocks were visited during the lambing period in the year following an outbreak. a total of 5239 samples were collected for bacterial culture from 797 ewes and their 1314 lambs. s dysgalactiae was isolated f ... | 2014 | 24619629 |