A genus of nonmotile, nonsporeforming, aerobic to facultatively anaerobic bacteria (family Bacteroidaceae) containing gram-negative, pleomorphic cells that vary from short rods to long, interwoven filaments that have a tendency to fragment into chains of bacillary and coccobacillary elements. These organisms can be pathogenic for rats, mice, and other mammals. The type species is Streptobacillus moniliformis.
[strepto- + bacillus]
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Examples: glitazone, GI cocktail, etc.