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Classification of the Legionnaires' disease bacterium: An interim report

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Abstract

Deoxyribonucleic acid (DNA) from strains of the Legionnaires' disease bacterium (LDB) was characterized in order to aid in the proper classification of this organism. The genome size of LDB DNA was estimated at 2.5×109 daltons by reassociation kinetics; a guanine-plus-cytosine content of LDB of 39% was established by optical thermal denaturation and buoyant density ultracentrifugation measurements. DNA relatedness studies on 12 strains of the LDB indicated that they were all members of the same species. DNA relatedness studies have thus far failed to show that the LDB is significantly related to any other organism, including all members of Enterobacteriaceae,Pasteurella multocida, Francisella tularensis, Rochalimaea quintana, Vibrio species,Staphylococcus epidermidis, andFlavobacterium meningosepticum.

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Brenner, D.J., Steigerwalt, A.G., Weaver, R.E. et al. Classification of the Legionnaires' disease bacterium: An interim report. Current Microbiology 1, 71–75 (1978). https://doi.org/10.1007/BF02605418

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