legionella feeleii legionella feeleii legionella feeleii is a gram-negative, rod-shaped bacterium from the genus legionella which was isolated from an automobile plant and which was held responsible for causing pontiac fever in 317 workers. the organism did not grow on blood agar, required l-cysteine, and showed significant quantities of branched-chain fatty acids. more recently, an unusual, extrapulmonary case was described in a 66-year-old woman admitted to hopital nord, marseille, france because of a complicated cellulitis and an abscess on her right leg following a suspected insect or spider bite. legionella feeleii scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: legionellales family: legionellaceae genus: legionella species: l. feeleii binomial name legionella feeleiiherwaldt et al. 1984 type strain atcc 35072, ccug 16417, cip 103877, dsm 17645, goorman wo-44c, nctc 12022, wo-44c