viridans streptococci


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Strep·to·coc·cus vir·i·dans

a name applied not to a distinct species but rather to the group of α-hemolytic streptococci as a whole; viridans streptococci have been isolated from the mouth and intestines of humans, the intestines of horses, the milk and feces of cows, and milk products.

vi·ri·dans strep·to·coc·ci

(vir'i-danz strep-tō-kok'sī)
A name applied not to a distinct species but rather to the group of α-hemolytic streptococci as a whole; viridans streptococci have been isolated from the mouth and intestines of humans, the intestines of horses, the milk and feces of cows, milk products, and the sputum and lungs.
Synonym(s): Streptococcus viridans.

vi·ri·dans strep·to·coc·ci

(vir'i-danz strep-tō-kok'sī)
A name applied not to a distinct species but rather to the group of α-hemolytic streptococci as a whole; have been isolated from the mouth and intestines of humans, the intestines of horses, the milk and feces of cows, milk products, and the sputum and lungs.
Synonym(s): Streptococcus viridans.
References in periodicals archive ?
The organisms detected in the participants were coagulase positive and coagulase negative Staphylococcus aureus , Viridans streptococci, diphtheroids, micrococci, bacteroides, and Klebsiella spp.
Streptococcus bovis and other Viridans Streptococci are inhibited by 6.
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.
and viridans streptococci isolates were differentiated by detection of pyrrolidonyl peptidase activity using PYR disks (Remel, KS).
Viridans streptococci cause more than 50% of community-acquired endocarditis that is not associated with intravenous drug use.
A total of 127 different bacterial species were identified, by far the most common being the viridans streptococci.
The predominant aerobes isolated from RPA in two previous studies were viridans streptococci (alpha and gamma hemolytic), Staphylococcus aureus, Haemophilus influenzae, Neisseria species and GABHS.
These are categorized as coagulase-negative staphylococci, with viridans streptococci composing the second largest group; enterococci are the most common gram-negative organism (Balmer & Valley, 1997).
0 2 Peptostreptococcus 0 0 Gram-positive Viridans streptococci 0 3 Streptococcal constellatus 0 1 Staphylococcus aureus 0 1 Unidentified Streptococcus 0 0 Candida albicans 0 1 No.
has received FDA clearance for the Dade MICroSTREP(TM) Panel, a new testing procedure for antimicrobial susceptibility of three different classes of streptococcus including Streptococcus pneumoniae, viridans streptococci and beta-hemolytic streptococci.
Viridans streptococci account for 50-70% of native valve IE.