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Jpn J Med Sci Biol. 1988 Apr;41(2):37-47.

An experimental model of chemotherapy on dormant tuberculous infection, with particular reference to rifampicin.

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Department of Cellular Immunology, National Institute of Health, Tokyo.


Mice were infected intravenously with a streptomycin (SM)-dependent strain of tubercle bacilli which had been starved of the antibiotic. The inoculum persisted in the spleen for a fairly long period, especially keeping almost the initial level of viable counts in the first few weeks. Isoniazid (INH) administration exerted little effect on such fate of the infection at a bactericidal dose to the same strain multiplying under the supply of SM. Rifampicin (RFP) was, however, highly effective in either case. Similar results were obtained in the corresponding in vitro experiments. The data suggest that this animal model is a convenient system for screening drugs effective on the dormant tuberculous infection.

[Indexed for MEDLINE]

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