Abstract
Cruickshank and Williams Smith1 found five of five hundred healthy dogs (1 per cent) in London to be excreting salmonellæ in their fæces. The technical methods used in this investigation consisted, briefly, in plating the samples directly on to Leifson's agar, and also after preliminary enrichment in selenite F medium and in tetrathionate broth. Wolff, Henderson and McCallum2 examined fæcal specimens from a hundred city dogs in Michigan by preliminary incubation in tetrathionate broth followed by plating on S.S. agar. They found 18 (18 per cent) to be positive for salmonellæ. Most of the positive samples were obtained from dogs suffering from distemper or from dogs maintained in a kennel where outbreaks of distemper and enteritis had occurred in the six months previous to sampling. Kintner3, simply by direct plating on S.S. agar, found 13 of 71 dogs (18 per cent) brought to the Ohio State Veterinary Clinic for treatment to be excreting salmonellæ in their fæces. Of the dogs in this investigation, 50 per cent of those suffering from distemper were positive for salmonellæ, as were 10 per cent of the non-distemper cases.
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References
Cruickshank, J. C., and Williams Smith, H., Brit. Med. J., ii, 1254 (1949).
Wolff, A. H., Henderson, N. D., and McCallum, G. L., Amer. J. Pub. Hlth., 38, 403 (1948).
Kintner, L., Vet. Med., 44, 396 (1949).
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SMITH, H., BUXTON, A. Incidence of Salmonellæ in Fæces of Dogs suffering from Distemper. Nature 166, 824 (1950). https://doi.org/10.1038/166824a0
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DOI: https://doi.org/10.1038/166824a0
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