Se. Hoffner et al., BIOCHEMICAL HETEROGENEITY OF MYCOBACTERIUM-TUBERCULOSIS COMPLEX ISOLATES IN GUINEA-BISSAU, Journal of clinical microbiology, 31(8), 1993, pp. 2215-2217
Fifty-six strains of the Mycobacterium tuberculosis complex from patie
nts in Guinea-Bissau were examined by using four biochemical tests (ni
acin production, nitrate reductase, pyrazinamidase, and resistance to
thiophen-2-carboxylic acid hydrazide). The isolates were divided into
five different biovars within a spectrum ranging from classical human
M. tuberculosis to classical M. bovis.