Described the most important taxonomical, bacteriological, clinical and epidemiological aspects of microorganisms of Flavobacterium genus, the author refer about 8 strains of Flavobacterium odoratum isolated from urine (6), sputum (1), surgical exudate (1). In some cases, etiopathogenetic possible correlation between isolates and clinical disease discussed, the author emphasizes the large antibiotic resistance kind of this species of microorganism non fermenter.