Subdivision of Mycobacterium tuberculosis into five variants for epidemiological purposes: methods and nomenclature
- 1 August 1982
- journal article
- research article
- Published by Cambridge University Press (CUP) in Epidemiology and Infection
- Vol. 89 (2), 235-242
- https://doi.org/10.1017/s0022172400070765
Abstract
SUMMARY: Virulent strains of Mycobacterium tuberculosis isolated from humans are divisible into five variants by using four tests: oxygen requirement (aerobic or microaerophilic), nitrate reductase activity, susceptibility to pyrazinamide (60 μg/ml) and susceptibility to thiophene-2-carboxylic acid hydrazide (5 μg/ml). The five variants are referred to as Classical human, Asian human, bovine, African I and African II. The relation of these variants to previously described types is discussed. This simple division has been shown to be useful in epidemiological studies.This publication has 27 references indexed in Scilit:
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