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Vet Microbiol. 1995 Nov;47(1-2):9-15.

Plasmid profiles of Klebsiella pneumoniae isolated from bovine mastitis.

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Department of Epizootiology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan.


Plasmids of Klebsiella pneumoniae strains isolated from mastitic milk of cows were detected, and the epidemiological significance of their profiles was investigated. Of 47 K. pneumoniae isolates, 41 (87.2%) possessed plasmid(s). Although the molecular size of the plasmids ranged from 1.9 to 140 megadaltons (Md), the 125 Md plasmid was predominant (31/41, 75.6%). There was a great diversity in the plasmid profiles, however, no correlation was found between the plasmid profiles and capsular types of Klebsiella or the source of strains (dairy farms), except for one farm. All isolates obtained from cows on that farm possessed the 125 Md plasmid and their capsular type was 9.

[Indexed for MEDLINE]

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