weeksella massiliensis weeksella massiliensis weeksella massiliensis is a bacterium from the genus of weeksella. weeksella massiliensis has been isolated from the urine from a man with acute cystitis weeksella massiliensis is a human pathogen. weeksella massiliensis scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: weeksellaceae genus: weeksella species: w. massiliensis binomial name weeksella massiliensissankar et al. 2017 type strain ff8