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Abstract
Extract
A gram-negative pleomorphic facultative aerobic organism, indistinguishable morphologically and culturally from that isolated from suppurative epididymitis in rams and described by Dodd & Hartley Citation(1955), has, over the last five years, been isolated at this laboratory on more than ten occasions from polytenosynovitis and pyaemia in lambs, and on one occasion from mastitis in a ewe. It still remains to characterize and classify this organism, but Roberts has made a detailed comparison of it with his Histophilus ovis (Roberts, Citation1956) and considers that the two are indistinguishable (Roberts, 1958, pers. comm.).