Classification. Aerococcus urinae is a member of the bacterial genus Aerococcus.The bacterium is a Gram-positive, catalase-negative coccus growing in clusters. Isolates of this genus were originally isolated in 1953 from samples collected in the air and dust of occupied rooms and were distinguished by their tetrad cellular arrangement

Aerococcus urinae and Aerococcus sanguinicola are relatively newcomers and emerging organisms in clinical and microbiological practice. Both species have worldwide been associated with urinary tract infections. More rarely cases of bacteremia/septicemia and infective endocarditis have been reported. Treatment options are therefore important.

Aerococcus urinae (A. urinae) isanewcomer to clinical and microbiological practice. This bacterium is mainly associated with urinary tract infections (UTI) especially in elderly patients with predisposing conditions. A. urinae naturally is isolated from dust, air, vegetation, and hospital environments. According to a new study, the Aerococcus urinae is a rare organism infrequently isolated from cultures. Mostly known to cause urinary tract infection, it can cause bacteremia leading to severe urosepsis and infective endocarditis.

Aerococcus sanguinicola urinary tract infection

Aerococcus urinae and Aerococcus sanguinicola have been shown to cause invasive human infections such as sepsis with a urinary tract focus and infective endocarditis (IE) [3,6–9] and both these species are also believed to cause urinary tract infections (UTI) [10,11]. Both species can form bioﬁlms on foreign ma- 2018-10-01 · Elderly patients with underlying urological disease have a greater risk of urinary tract infections due to uncommon pathogens. The disease caused by Aerococcus has been underestimated, but mass spectrometry could be a simple method for identifying this pathogen. In this study, we report 2 cases of urinary tract infection by Aerococcus sanguinicola. urinae, previously known as Aerococcus-like organism, is an uncommon pathogen. Previous reports from European coun-tries indicate that it is associated with UTI (4), bacteremia (3), sepsis (2), and potentially fatal endocarditis (2, 7, 10, 13). The main features of our two cases and previously reported cases cases of 4.

13. Schuur PM, Kasteren ME, Sabbe L, et al. Urinary tract infections with Aerococcus urinae in the south of The Netherlands. Eur J Clin Microbiol Infect Dis. 1997;16(12):871-5. 14. Cattoir V, Kobal A, Legrand P. Aerococcus urinae and Aerococcus sanguinicola, two frequently misidentified uropathogens. Scand J Infect Dis. 2010;42(10):775-80.

Guidance UTI is a rapid molecular test for both pathogen identification and antibiotic sensitivlty testing, providing an improved solution over traditional culture

Objectives: Aerococcus urinae and Aerococcus sanguinicola cause urinary tract infections (UTIs) and antibiotic treatment recommendations are solely based on in vitro findings and limited clinical experience. Thirty-one of 46 patients with A. sanguinicola and 45 of 57 patients with A. urinae isolated from the urine had a clinical diagnosis of urinary tract infection. One subject had A. sanguinicola isolated from blood cultures. A. sanguinicola and A. urinae had low ceftriaxone, penicillin, and vancomycin MICs. MICs to erythromycin and levofloxacin were ≥0.5 and >4 μg/mL in 41% and 78% of A. sanguinicola and 17% and 23% of A. urinae isolates, respectively. Aerococcus sanguinicola and Aerococcus urinae are emerging pathogens in clinical settings mostly being causative agents of urinary tract infections (UTIs), urogenic sepsis and more seldomly Species belonging to the Aerococcus genus are isolated from the urine and blood of elderly patients suffering from urinary tract infections (UTIs).

Aerococcus sanguinicola urinary tract infection

However, the clinical significance, phenotypic features and antimicrobial susceptibilities of these underestimated and/or misidentified species remain unclear. Aerococcus sanguinicola and Aerococcus urinae are emerging pathogens in clinical settings mostly being causative agents of urinary tract infections (UTIs), urogenic sepsis and more seldomly Objectives: Aerococcus urinae and Aerococcus sanguinicola cause urinary tract infections (UTIs) and antibiotic treatment recommendations are solely based on … 2000-04-01 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. Thirty-one of 46 patients with A. sanguinicola and 45 of 57 patients with A. urinae isolated from the urine had a clinical diagnosis of urinary tract infection. One subject had A. sanguinicola isolated from blood cultures. A. sanguinicola and A. urinae had low ceftriaxone, penicillin, and vancomycin MICs.
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PATHOGENICITY/TOXICITY: A. urinae and A. sanguinicola have been implicated as urinary tract pathogens in patients predisposed to infection such as immunocompromised patients, and elderly men with urinary tract pathologies. The patient was discharged on oral cefpodoxime with a diagnosis of vasovagal syncope and a urinary tract infection related to a relatively under-recognized organism. Aerococci urinae is a Gram-positive, catalase-negative, bacterium that grows in clusters, often appearing in colonies that resemble Streptococci viridans [ 1 ]. Apart from A. urinae and A. viridans, another subspecies – Aerococcus sanguinicola – was found responsible for many human infections. Aerococcus christensenii and Aerococcus urinaehominis are the other subspecies very rarely associated with human pathologies.[ 5 , 6 ]

More rarely cases of bacteremia/septicemia and infective endocarditis have been reported.
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2003-06-01

A. urinae, and also A. sanguinicola, cause invasive infections Objectives: Aerococcus urinae and Aerococcus sanguinicola cause urinary tract infections (UTIs) and antibiotic treatment recommendations are solely based on Springer. May 2017; European Journal of Clinical Microbiology & Infectious Diseases 36(5) However, since bacteremia typically has a urinary tract focus,. there is a risk fact, Actinotignum species and Aerococcus species have been Bacteremia with Aerococcus sanguinicola: case series with charac-. Urinary Tract Dept., PHL, Göteborg, Sweden · 1993-08-23 44415 B, Enterococcus faecalis, Human urine, 80-yr old man, recurrent infections, A.Wistedt, PHLS, Kalmar, 47573 · Aerococcus sanguinicola · Human urine, 82-yr-old woman, cystitidis 42038 BT, Aerococcus urinaehominis, Human urine, 84-yr-old woman Aerococcal infections : - from bedside to bench and back A. urinae and A. sanguinicola were more common than previously thought and grew in Almost 80 % of the patients had symptoms of a urinary tract infection in one of the studies.

Thirty-one of 46 patients with A. sanguinicola and 45 of 57 patients with A. urinae isolated from the urine had a clinical diagnosis of urinary tract infection. One subject had A. sanguinicola isolated from blood cultures. A. sanguinicola and A. urinae had low ceftriaxone, penicillin, and vancomycin MICs.

2020-06-09 Elderly patients with underlying urological disease have a greater risk of urinary tract infections due to uncommon pathogens. The disease caused by Aerococcus has been underestimated, but mass spectrometry could be a simple method for identifying this pathogen. In this study, we report 2 cases of urinary tract infection by Aerococcus sanguinicola. Aerococcus urinae and Aerococcus sanguinicola have been shown to cause invasive human infections such as sepsis with a urinary tract focus and infective endocarditis (IE) [3,6–9] and both these species are also believed to cause urinary tract infections (UTI) [10,11].

All patients had underlying urologic conditions. Urine cultures, however, were negative.