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Experiments on the Survival of B. typhosus in Sterilised and Unsterilised Soil

Published online by Cambridge University Press:  15 May 2009

W. Mair
W. Mair
Affiliation:
(From the Pathological Laboratory of Queen's College, Belfast.)
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1. The typhoid bacillus can survive in natural soil in large numbers for about 20 days and is still present in a living condition after 70 to 80 days.

2. There is no evidence that the typhoid bacillus is capable of multiplying and leading a saprophytic existence in ordinary soil.

3. In some samples of soil, but not in all, the typhoid bacillus dies out much more rapidly (in 11 days) if the soil has previously been subjected to sterilisation by steam under pressure. This is apparently due to the production of bactericidal substances during sterilisation.

Type
Research Article
Information
Journal of Hygiene , Volume 8 , Issue 1 , January 1908 , pp. 37 - 47
Copyright
Copyright © Cambridge University Press 1908

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