Dogs have been shown to harbor 53 salmonellae serotypes. Multiple simultaneous infections with 2 to 4 serotypes have been observed. The prevalence of canine salmonellosis may be a high as 27 per cent. Salmonella typhimurium and S. anatum are the most common etiologic agents. Dogs commonly experience a sub-clinical course of salmonellosis. Some investigators state that the dog may serve as a source of human infections. A few reports in the literature have documented this fact. The transmissions of S. enteritidis from dog to child is described in this article.

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Polluted river water, river bottom sediment, fish body slime, fish gastrointestinal tracts and fresh water mussel gastrointestinal tracts were examined for Salmonella. Eleven serotypes were found among 131Isolates. S. amsterdam was the predominating Salmonella spp., and was obtained from all specimens. Two serotypes, give and senftenberg. were found only in the fish gastrointestinal tracts. Salmonellae may colonize in fish and serve as an indicator system for current as well as retrospective evidence of fecal pollution of the aquatic environment. INTRODUCTION:

Salmonellosis represents the most prevalent zoonotic infection of Bovidae. Approximately 111 of the over 1700 salmonellae serotypes have been found in cattle (1). Eighty-one types of Salmonella have been cultured from cattle in the U.S. (1). It may be assumed that the bovine animal is potentially susceptible to all the salmonellae which colonize lower animals. A summary of the predominant serotypes found in U.S. cattle is given in Table 1.

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