Abstract
Summary
It appears, then, that no proof has been brought that salmonella is the cause of ulcerative cecitis of rats. In our laboratory a specific strain of salmonella was, to be sure, intimately associated with the lesions and this organism further was shown to be pathogenic for rats, since an acute diffuse enteritis was readily produced and the organism was again recovered from the lesions. Chronic cecitis, however, failed to develop to a significantly greater extent than in untreated controls. It is possible that some other agent is the primary cause of cecitis and that salmonella is merely an associated organism or one which tends to act as a secondary invader. Further search for such a primary agent is in progress.
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