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|Noun||1.||genus Francisella - a genus of Gram-negative aerobic bacteria that occur as pathogens and parasite in many animals (including humans)|
bacteria, bacterium - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
Francisella tularensis - the type species of the genus Francisella and the causal agent of tularemia in humans; can be used as a bioweapon
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