Hostname: page-component-745bb68f8f-grxwn Total loading time: 0 Render date: 2025-01-27T00:58:10.036Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies in bacterial Variability. The Experimental Production of a Mucoid form of B. paratyphosus B

Published online by Cambridge University Press:  15 May 2009

E. W. Ainley Walke
E. W. Ainley Walke
Affiliation:
From the Department of Pathology, University of Oxford, A Report to the Medical Research Council.
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

1. The experimental derivation of a mucoid form of B. paratyphosus B is described.

2. This form, though at one stage non-motile, agreed closely with the “capsulated mucoid forms” of paratyphoid B, isolated by W. Fletcher from two chronic “carrier” cases.

3. The mucoid paratyphoid B was highly dys-agglutinable, and it would not on serological examination be identified as a paratyphoid B.

4. Its colonies were also entirely unlike colonies of paratyphoid B, being large, slimy, and usually dome-shaped, though at other stages of their metamorphosis they presented either an umbilication, or a nipple-like elevation in the centre.

5. The mucoid bacillus possessed the distinctive sugar reactions of paratyphoid B.

6. On suitable manipulation it reverted to the ordinary form.

Type
Research Article
Information
Journal of Hygiene , Volume 21 , Issue 1 , June 1922 , pp. 87 - 92
Copyright
Copyright © Cambridge University Press 1922

References

REFERENCES

Arkwright, J.A. (1921). Journ. Pathol. and Bacteriol. XXIV. 36.CrossRefGoogle Scholar
Benians, T.H.C. (1916). Brit. Med. Journ. II. 722.Google Scholar
Fletcher, W. (1920). Journ. Roy. Army Med. Corps, XXXIV. 219.Google Scholar
Revis, C. (1910). Centralbl. f. Bakteriol. u. Parasitenk. 2 abt. XXVI. 161.Google Scholar
Walker, E.W. Ainley (1922). Proc. Roy. Soc. B. XCIII. 54. (see also Gardner, A. D. and Walker, E.W. A. (1921). Journ. of Hyg. 20. 110.)Google Scholar