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Filtration Experiments with Spirochaeta Schaudinnii

Published online by Cambridge University Press:  15 May 2009

E. C. Smith
Affiliation:
Medical Research Institute, Lagos, W. Africa
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Summary

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It has been shown that S. schaudinnii will easily pass through Berkefeld V filters under a negative pressure of considerably less than one atmosphere, but B. pyocyaneus was always found in the filtrates in association with the spiro-chaetes. Attempts to pass S. schaudinnii through Berkefeld N filters were uniformly negative.

Inoculation experiments on native volunteers made with (a) filtrates containing S. schaudinnii and B. pyocyaneus, (b) a mixture of these organisms combined with B.fusiformis, and (c) an emulsion of B.fusiformis in broth, did not give rise to ulceration.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1934

References

REFERENCES

Elford, W. J. (1931). A new series of graded collodion membranes suitable for general bacteriological use, especially in filterable virus studies. J. Path. Bact. 34, 505.CrossRefGoogle Scholar
Hindle, E. and Elford, W. J. (1933). The filtration of spirochaetes through graded collodion membranes. J. Path. Bact. 37, 9.CrossRefGoogle Scholar
Smith, D. T. (1932). Fuso-Spirochaetal Disease. London; Bailliere, Tindall and Cox.Google Scholar
Smith, E. C. (1930). Cultivation of the spirochaetes associated with tropical ulcer. Proc. Boy. Soc. Med. 24, 01, No. 4.Google ScholarPubMed
Smith, E. C. (1933). Inoculation experiments with B. fusiformis isolated from tropical ulcer with observations on the bacillus. J. Hygiene, 33, 95.CrossRefGoogle Scholar
Smith, E. C. and Elmes, B. G. T. (1931). Experimental tropical ulcer. West African Med. J. 4, 87.Google Scholar