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Curr Microbiol. 1996 Feb;32(2):85-8.

Enterococcus seriolicida is a junior synonym of Lactococcus garvieae, a causative agent of septicemia and meningoencephalitis in fish.

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Department of Clinical Microbiology, Hebrew University-Hadassah Medical School, Jerusalem, Israel.


The reference strains of Enterococcus seriolicida (ATCC 49156T) (T = type strain) and of Lactococcus garvieae (ATCC 43921T) and 30 field strains of Gram-positive cocci isolated from diseased rainbow trout in Italy were found to be phenotypically (API 20 STREPT and API 50 CH) and genetically (DNA-DNA hybridization) similar. The high DNA-DNA homologies (70-100%) and the low delta Tme (less than 1.1 degrees C) among these strains showed that Enterococcus seriolicida and Lactococcus garvieae are synonyms, describing a single bacterial species. E. seriolicida strains should be classified as L. garvieae, which must be considered as a major pathogen of freshwater and salt water fish with a world-wide distribution.

[Indexed for MEDLINE]

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