PDF Clinical and microbiological features of Actinotignum

2015-09-28 · Aerococcus urinae (A.urinae) is a rare bacterium that can occur in a urinary tract infection, infective endocarditis, blood stream, and spinal disc infections. A. urinae is a gram-positive coccus occurring in tetrads or pairs, similar to the α-hemolytic Streptococci, which is commonly found in the urinary tract in children and elderly people. Se hela listan på hindawi.com A gram-stain-positive, facultatively anaerobic, non-spore-forming, catalase-negative, coccoid-shaped bacterial strain, designated BV2(T), was isolated from the vaginal mucosa of a beef cow in Japan. Phylogenetic analysis showed that the isolate shared high 16S rRNA gene sequence similarity (92.9 %) … Actinobaculum was isolated from urine only after prolonged incubation in 5% CO(2) after discrepancy between urine Gram stain and initial culture results was observed. Additional patients were diagnosed using this method.

Aerococcus urinae gram stain

This organism is closely related to Aerococcus viridans (which is usually PYR positive and LAP negative). In 1992, it was given its own unique classification. Aerococci occur naturally in dust, air, vegetation, and hospital environments. A. urinae has been known to cause urinary tract infections, bacteremia/septicemia, and Aerococcus urinae Gram-positive cocci in small clusters on a heart valve of a patient who died from endocarditis (Gram stain). Diagnostik av grampositiva, katalasnegativa kocker ("alfa-streptokocker") Smittämnen.

Aerococci are Gram-positive, facultatively anaerobic, catalase-negative cocci cerning the encrusted cystitis, Gram-staining showed the presence of a small Most isolates of Aerococcus urinae have been characterized as resistant to A number of cases of C. urealyticum UTI also report that Gram-staining of urine Aerococcus urinae. Corynebacterium urealyticum.

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For a long time, Aerococcus viridans (1953) was the only known species. Historically, A. urinae is considered to be an under recognized cause of human disease [4, 20, 21]. A. urinae is classically described on gram stain as being arranged in tetrads but also has been known to occur in clusters and irregular pairs.

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2015-09-28 2020-06-09 Aerococcus urinae can, in older males with underlying urinary tract conditions, cause invasive infections such as urosepsis or infective endocarditis. The prognosis of invasive aerococcal infections appears to be relatively favourable despite the old age of patients and their many comorbidities.

urinae is mainly responsible for urinary tract infections,where it accounts for 0.3 – 0.8% of all cases [4,5]. A.urinae is also a … MALDI: anaerobic Gram-positive cocci Peptoniphilus sp. DQ986463 (KF963588) 488 17 Deceased 05 96M Colon cancer diagnosed on admission with probably metastases Urosepsis, colon cancer invading bladder MALDI: polymicrobial (Peptoniphilus sp. Aerococcus urinae) Peptoniphilus sp.
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NCBI Superkingdom Bacteria: NCBI Kingdom NCBI Phylum Gram Stain Gram+: Motility Aerococcus urinae ( Au) and Globicatella sanguinis ( Gs) are gram-positive bacteria belonging to the family Aerococcaceae and colonize the human immunocompromised and catheterized urinary tract. The isolate was identified as Aerococcus species by phenotypic tests (colony morphology, Gram stain morphology, catalase, growth in 6.5% NaCl, pyrrolidonyl-arylamidase, leucine-aminopeptidase, β-glucuronidase, hippurate hydrolysis, and vancomycin susceptibility) and was confirmed to be Aerococcus urinae by sequence analysis of 16S rRNA DNA. Aerococcus urinae is a Gram-positive coccus that was identi-ﬁed as a possible pathogen colonizing the human urinary tract and was originally designated as an Aerococcus-like organism [1,2]. The bacterium was recognized as a distinct species in 1992 [3]. A. urinae shares features with staphylo-cocci, streptococci and enterococci as the PATHOGEN SAFETY DATA SHEET - INFECTIOUS SUBSTANCES SECTION I - INFECTIOUS AGENT.

The genus Aerococcus was initially described by Williams in his description of Aerococcus viridans ( Williams et al., 1953 ). Aerococcus urinae is a Gram-positive alpha-hemolytic bacterium first isolated and identified from urine from patients with UTI (8). Since its discovery, A. urinae has been isolated from a wide variety of patients, both male and female, ranging from children to the elderly (9). Classification.
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This organism is closely related to Aerococcus viridans (which is usually PYR positive and LAP negative). In 1992, it was given its own unique classification. Aerococci occur naturally in dust, air, vegetation, and hospital environments. A. urinae has been known to cause urinary tract infections, bacteremia/septicemia, and Aerococcus-like organisms was clearly shown in a series of pio-neering works from Christensen and colleagues [6,10,19] leading to the deﬁnition of the new species A. urinae in 1992 [20], which encompasses most Aerococcus-like organisms [21].