f Virulence of Klebsiella strains in experimentally induced skin lesions in the mouse
- Authors: A. M. SIMOONS-SMIT, A. M. J. J. VERWEY-VAN VUGHT, I. Y. R. KANIS, D. M. MACLAREN
- J. Med. Microbiol., February 1984 17: 67-77, doi: 10.1099/00222615-17-1-67
- Subject: Articles
- Published Online:
SUMMARY. The virulence of 93 clinical isolates of Klebsiella was compared in a mouse model by subcutaneous injection. Skin pathogenicity was measured by estimating the number of viable bacteria in the lesions 24 h after infection with a dose of 107 bacteria. Strains of serotypes K1-6 were compared with strains of serotypes higher than K6. All K1 and K5, and some K2 and K4 strains were more virulent for mice than strains with a serotype higher than K6. The K3 strains were significantly less virulent than the strains with a serotype higher than K6. The bacteriological findings were confirmed by histological examination with some strains. No differences in virulence were observed between strains of the same serotype isolated from patients with cystitis or from those with pyelonephritis, nor between strains of the same serotype isolated from the blood of patients with septicaemia or from other sites. The mouse model has been found satisfactory for observing differences in virulence between Klebsiella isolates.
Copyright © 1984 The Pathological Society of Great Britain and Ireland | Published by the Microbiology Society
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