Characterization of a Virus Associated with Turkey Rhinotracheitis

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Abstract
A virus associated with turkey rhinotracheitis was purified and its morphology and structural polypeptides were compared with those of the bovine, human and murine members of the genus Pneumovirus. The isolate possessed surface projections 13 to 14 nm in length and a helical nucleocapsid 14 nm in diameter with a pitch of 7 nm. Approximately seven presumed viral polypeptides were observed. Their apparent molecular weights were 200 .times. 103 (200K), 84K, 54K, 42K, 37K, 31K and 14K; two of these, the 84K and 54K polypeptides, were glycosylated. The virus was shown to possess many features that were similar to established pneumoviruses and can therefore be regarded as a possible member of this genus.

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