legionella drozanskii legionella drozanskii legionella drozanskii is a gram-negative, catalase-positive, oxidase-negative bacterium from the genus legionella which was isolated from tank well water in leeds in england. legionella drozanskii scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: legionellales family: legionellaceae genus: legionella species: l. drozanskii binomial name legionella drozanskiiadeleke et al. 2001 type strain atcc 700990, ccug 43885, cip 107644, dsm 19890, llap-1