viridans streptococci

[′vir·ə‚danz ¦strep·tə′käk·ē]

(microbiology)

A group of pathogenic and saprophytic streptococci including strains not causing beta hemolysis, although many cause alpha hemolysis, and none which elaborate a C substance.

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References in periodicals archive ?

For polymicrobial cultures, the majority of the misses were coagulase-negative staphylococci and/or viridans streptococci with or without a non-BC-GP target.

The SUCCESS model for laboratory performance and execution of rapid molecular diagnostics in patients with sepsis

of patients (%) GRAM-POSITIVE Streptococci 38 (23) viridans Streptococci 24 (15) Streptococcus bovis 1 (1) Streptococcus mitis 1 (1) Streptococcus intermedius 1 (1) Others 11 (7) Staphylococci 21 (13) Staphylococcus aureus 10 (6) Staphylococcus epidermidis 11 (7) Enterococcus faecalis 7 (4) GRAM-NEGATIVE Pseudomonas species * 3 (2) Enterobacter (+) 3 (2) Serratia 1 (1) No growtha 86 (54) * P.

Clinical profile and outcome of infective endocarditis at the Aga Khan University Hospital

From blood cultures evaluated with The BacT/ALERT and the BACTEC 9240 systems viridans streptococci were isolated.

A rare pathogen causing endocarditis: Streptococcus constellatus/Endokardite neden olan ender hir patojen: Streptococcus constellatus

of Isolates Aerobic and facultative Gram-positive cocci GABHS 22 Viridans streptococci 24 Streptococcus nonspeciated 6 Micrococcus species 9 Coagulase negative Staphylococcus 3 Staphylococcus aureus 2 Streptococcus mitis 1 Gram-negative cocci Neisseria species (nonpathogenic) 6 Gram-negative bacilli Eikenella species 2 Haemophilus parainfluenzae 2 Haemophilus influenzae (nontypeable) 1 Klebsiella pneumoniae 1 Gram-negative bacilli (nonlactose fermenter) 1 Gram-positive bacilli Corynebacterium species 4 Total number of aerobes 84 Anaerobic Anaerobic cocci Peptostreptococcus species 2 Gram-negative bacilli Prevotella species 8 Prevotella intermedia 2 Bacteroides species 2 Fusobacterium varium 2 Prevotella oralis 1 Total number of anaerobes 17

Retropharyngeal abscess in children: the emerging role of group A beta hemolytic Streptococcus

Viridans streptococci bacteremia in children with malignancy: relevance of species identification and penicillin susceptibility.

Streptococcus mitis strains causing severe clinical disease in cancer patients

A total of 127 different bacterial species were identified, by far the most common being the viridans streptococci.

Regular toothbrushing causes bacteremia involving pathogens related to endocarditis

Peritoneal fluid culture grew Pantoea agglomerans, Stomatococcus species, Viridans streptococci, and Candida lusitaniae.

Polymicrobial peritonitis including Pantoea agglomerans from teething on a catheter

For example, when the procedure manual states that a bile solubility test is used to differentiate Streptococcus pneumoniae from viridans streptococci in sputum cultures, the results of that test should be recorded on the worksheet.

Preserving routine urine specimens, documentation of normal flora, and quantitative body fluid counts. (Tips from the Clinical Experts)

Infections with viridans streptococci predominated among cases of known etiology, and RHD was the most common underlying pathologic change.

Infective endocarditis in northeastern Thailand

Among those bacteria that are not inhibited by quinolones are viridans streptococci.

A brief history of infection control--past and present

2) The main pathogens are Staphylococcus aureus, Viridans streptococci, and Enterococcus.

Infective endocarditis due to Providencia stuartii

These four predictors were congestive heart failure, abnormal mental status, a blood culture positive for an organism other than the viridans streptococci, and presence of comorbid disease (a Charlson score of 2 or greater).

System picks surgery candidates in left-sided native valve endocarditis. (Two Retrospective Cohorts Studied)

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