Streptococcus viridans


Also found in: Encyclopedia, Wikipedia.

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.

Streptococcus viridans

Etymology: Gk, streptos, curved, kokkos, berry
a poorly defined species of Streptococcus similar to S. pyogenes strains. It produces alpha-hemolysis in cultures and is a common cause of subacute bacterial endocarditis and other infections, such as gingivitis, in humans.

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 most frequently identified causative organisms in samples are Streptococcus salivarius, Streptococcus viridans and other a-hemolytic streptococci, Staphylococcus aureus, and Pseudomonas spp.
Klingeren, in PubMed, "The chemical components in hemp are able to kill microorganisms including: Staphylococcus aureus, Streptococcus viridans, Pneumococcus Cornyebacterium diphteriae, Bacillus anthracis, and Mycobacterium.
The most frequently isolated organism was Streptococcus viridans, followed by Staphylococcus aureus and Staphylococcus epidermidis.
Analysis revealed bacterial isolates including alphahemolytic Streptococcus, Streptococcus viridans, Peptostreptococcus micros, Gemella morbillorum, and Actinomyces odontolyticus.
Cultures of the pleural fluid samples revealed streptococcus viridans and the appropriate parentheral antibiotherapy were given.
5 Streptococcus pneumoniae 11 8-16 Streptococcus pyogenes 3 1-8 Streptococcus viridans 25 2-32 Gram-positive bacilli Bacillus subtilis 1 Clostridium welchii 14 4-32 Corynebacterium spp 1.
Initial wound biops ies showed multiple organism growth including 3+ Corynebacterium, 3+ Streptococcus Viridans, and 3+ Prevotella Melaninogenica.
On day two, blood cultures demonstrated Streptococcus viridans, and the patient's antibiotic was changed to IV nafcillin.
When used, prophylaxis should target prevention of infections caused by Streptococcus viridans.
Previous data indicated that Streptococcus viridans and Staphylococcus aureus were dominant organisms.
The activity on Enterococcus, Bacillus corineforme, Streptococcus viridans and S.