Clinical manifestations and diagnosis of Listeria ... - UpToDate
WEBJul 22, 2024 · Listeria is a gram-positive rod that causes invasive disease in susceptible patients, such as neonates, immunosuppressed, and older adults. Learn how to identify Listeria on Gram stain and differentiate it from other bacteria.
Listeria Monocytogenes - StatPearls - NCBI Bookshelf
WEBJul 4, 2023 · Listeria monocytogenes is a facultative, intracellular, gram-positive rod that is responsible for causing the infection listeriosis. Listeria causes severe infection in the elderly, neonates and the immunocompromised with only a self-limited gastrointestinal infection in the immunocompetent.
Pathology Outlines - Listeria monocytogenes
WEBAug 23, 2023 · Listeria monocytogenes is a gram positive, facultative intracellular bacterium that causes food borne and invasive infections. It can be detected by culture, PCR and serology, but CSF Gram stain is only positive in 40% of cases.
Gram Stain: What It Is, Purpose, Procedure & Results - Cleveland Clinic
WEBMar 16, 2022 · A Gram stain is a lab test that checks for bacteria in a sample and classifies them as gram-positive or gram-negative based on their color. It can help diagnose and treat certain infections, such as pneumonia and UTIs, but it …
Listeria monocytogenes - Wikipedia
WEBListeria monocytogenes is a Gram-positive bacterium that causes listeriosis, a serious infection that can affect the brain, blood, and nervous system. It can grow in cold temperatures and invade host cells, and is one of the most virulent foodborne pathogens.
Epidemiology and pathogenesis of Listeria monocytogenes ... - UpToDate
WEBNov 20, 2023 · On Gram stain, Listeria may resemble pneumococci (diplococci), enterococci, or diphtheroids (Corynebacteria) or be gram variable and be confused with Haemophilus species (picture 2) [3-5].
Genus Listeria Definition, Class, Characteristics and Gram Stain
WEBLearn about the definition, classification, characteristics and gram stain of Listeria, a genus of short rod-shaped bacteria that can be pathogenic or free-living. Find out how they are distributed, reproduce and survive in different habitats and hosts.
Listeria Monocytogenes | Johns Hopkins ABX Guide - Hopkins …
WEBSep 10, 2023 · Learn about the microbiology, clinical syndromes, diagnosis, and treatment of Listeria monocytogenes, a gram-positive rod that causes listeriosis and gastroenteritis. Find out the risk factors, outbreak sources, and outcomes of this serious infection.
Listeria - Oxford Academic
WEBApr 1, 2003 · A simplified genus identification is based on Gram stain (revealing Gram-positive, slim, short rods), positive catalase reaction (3% [m/m] hydrogen peroxide solution), and observation of motility. Classical cold enrichment over months is …
Listeria Monocytogenes Infection (Listeriosis) Workup - Medscape
WEBAug 18, 2014 · Listeria organisms are motile in wet mounts of CSF. CSF Gram stain results are positive in less than 50% of patients. CSF analysis reveals pleocytosis, and CSF protein levels are moderately...
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