legionella worsleiensis legionella worsleiensis legionella worsleiensis is a bacterium from the genus legionella which was isolated from industrial cooling tower in worsley in england. legionella worsleiensis scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: legionellales family: legionellaceae genus: legionella species: l. worsleiensis binomial name legionella worsleiensisdennis et al. 1993 type strain atcc 49508, ccug 44923, cip 105114, cip 105114.95/83-1347, nctc 12377