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Enterococcus faecium is a Gram-positive, gamma-hemolytic or non-hemolytic bacterium in the genus Enterococcus. [1] It can be commensal (innocuous, coexisting organism) in the gastrointestinal tract of humans and animals, [ 2 ] but it may also be pathogenic , causing diseases such as neonatal meningitis or endocarditis .
Enterococcus is a large genus of lactic acid bacteria of the phylum Bacillota. Enterococci are Gram-positive cocci that often occur in pairs ( diplococci ) or short chains, and are difficult to distinguish from streptococci on physical characteristics alone. [ 2 ]
Enterococcus faecalis – formerly classified as part of the group D Streptococcus system – is a Gram-positive, commensal bacterium inhabiting the gastrointestinal tracts of humans. [ 1 ] [ 2 ] Like other species in the genus Enterococcus , E. faecalis is found in healthy humans and can be used as a probiotic.
Enterococcus casseliflavus is a species of commensal Gram-positive bacteria. Its name derived from the "flavus" the Latin word for yellow due to the bright yellow pigment that it produces. [ 2 ] This organism can be found in the gastrointestinal tract of humans [ 3 ]
These early findings may be followed by signs and symptoms of shock. [ citation needed ] Biliary tract infection is usually caused by E. coli, Klebsiella and Enterococcus spp. Anaerobes (mostly B. fragilis group, and rarely C. perfringens ) can be recovered in complicated infections associated with carcinoma, recurrent infection, obstruction ...
Representative genera include Enterococcus, Melissococcus, Pilibacter, Tetragenococcus, and Vagococcus. In this family are some important lactic acid bacteria which produce lactic acid as the major metabolic end product.
Enterococcus malodoratus is a species of the genus Enterococcus and a gram positive bacteria capable of opportunistic pathogenic response. These microbes have a thick polypeptide layer. [ 1 ] Enterococcus can be found in the gastrointestinal tracts of humans and other mammals.
Enterococcus gallinarum is a species of Enterococcus. [3] E. gallinarum demonstrates an inherent, low-level resistance to vancomycin.Resistance is due to a chromosomal gene, vanC, which encodes for a terminal D-alanine-D-serine instead of the usual D-alanine-D-alanine in cell wall peptidoglycan precursor proteins. [4]