Streptococcus viridans


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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 ?
Bacterial isolates at Charlotte Maxeke Johannesburg Academic Hospital: 2002-2012 Organism 2002-2003, 2009-2010, 2012, n/N (%) n/N (%) n/N (%) Gram-positive 79 (68.1) 134 (54.4) 100 (46.3) CONS 65 (56.0) 62 (22.5) 56 (25.9) Staphylococcus aureus 4 (3.4) 23 (8.3) 31 (14.3) Enterococcus faecalis 4 (3.4) 13 (4.7) 7 (3.2) GBS 2 (1.7) 10 (3.6) 3 (1.4) Enterococcus faecium 0 11 (4.0) 2 (0.9) Listeria monocytogenes 0 0 1 (0.5) Streptococcus viridans 4 (3.4) 15 (6.1) 0 Gram-negative 37 (31.9) 112 (40.5) 116 (53.7) Klebsiella spp.
Bacteriemia related with Streptococcus viridans may be observed in 22-72% of dilatations (3-5).
Diversas investigaciones con Streptococcus viridans han mostrado porcentajes variables, pero en aumento de resistencia a antibioticos [beta]-lactamicos (10-12).
The most frequently identified causative organisms in samples are Streptococcus salivarius, Streptococcus viridans and other a-hemolytic streptococci, Staphylococcus aureus, and Pseudomonas spp.
Streptococcus viridans was the most common causative agent and compared to other heart valves, aortic and mitral valves were more frequently involved.2-5
The present study deals with the bioactivity assessment of 5,11,17,28-tetrakismorpholinomethyl-25,26,27,28-tetrahydroxycalix[4]arene (3) against a variety of microorganisms including Gram Positive; Staphylococcus albus ATCC 10231, Streptococcus viridans ATCC 12392, Gram Negative: Bacillus procynous ATCC 51189, Enterobacter aerogenes ATCC 13048, Klebsiella aerogenous ATCC 10031, Escherichia coli ATCC 8739, Sallmonella ATCC 6017 and Fungi: Aspergillus Niger ATCC 16404, Aspergillus fumagatus ATCC 90906, Penicillium ATCC 32333.
Ginger has been shown to be effective against the growth of both Gram-positive and Gram- negative bacteria including Escherichia Coli, Proteus vulgaris, Salmonella typhimurium, Staphylococcus aureus and Streptococcus viridans. (Mascolo, 1989).
Analysis revealed bacterial isolates including alphahemolytic Streptococcus, Streptococcus viridans, Peptostreptococcus micros, Gemella morbillorum, and Actinomyces odontolyticus.
Streptococcus viridans and Streptococcus pneumonia are the most important pathogens in post-trabeculectomy-associated endophthalmitis (6-7).
Unlike previous reports, streptococcus viridans was not the most frequently isolated micro-organism.
In neonates, other organisms include group B streptococcus, Streptococcus viridans, Streptococcus pneumoniae, Neisseria gonorrhoeae, gram-negative enteric bacteria including Escherichia coli and group A streptococcus.
Blood cultures were positive for Streptococcus viridans. Transthoracic echocardiogram showed a mobile left atrial mass with small pedicle attached to the lower part of the interatrial septum, 56x44 mm in size, prolapsing into the left ventricle through the mitral valve.