S. pyogenes belongs to Lancefield group A and is gram-positive (Figure 5.3(A)). Cells of this species have a diameter of 0.5–1.0 μm and are usually spherical. However, cells from old cultures may be oval. Moreover, S. pyogenes cells are often arranged in short, medium, or long cha...
View chapter Chapter Streptococcus pyogenes Molecular Medical Microbiology (Third Edition) Book2024,Molecular Medical Microbiology (Third Edition) TaoXu,WenhongZhang Explore book 36.1Identification The genusStreptococcusis a facultative, gram-positiveanaerobewithin the phylumFirmicutes(Fig. 36.1) composed of a...
including lincomycin and clindamycin, together with streptogramin B and macrolides, often showed cross resistance due to their common mechanisms of action (discussed in the next section). They have been used largely in food production
Courtney HS, Ofek I, Penfound T, Nizet V, Pence MA, Kreikemeyer B, Podbielski A, Hasty DL, Dale JB: Relationship between expression of the family of M proteins and lipoteichoic acid to hydrophobicity and biofilm formation in Streptococcus pyogenes. PLoS ONE. 2009, 4 (1): e4166-10.1371/...
The present study was designed to provide a satisfactory explanation for the failure to isolate these bacteria from patients with MCLS, by electron microscopic observation of group A ftera-hemolytic streptococci which had been inoculated intramuscularly into mice. \\\"Spherical bodies\\\" were ...
(Fig.5). Interestingly, we observed some monocytes with large numbers of bound GBS alongside other monocytes in the same field of view that had no visibly associated bacteria. Taken together, the results of antibiotic protection assays and microscopic analysis show thatshtcontributes to the ability...
Streptococcus pyogenes infection continues to be a worldwide public health problem causing various diseases in humans and plays an important role in the pathogenesis of rheumatic fever and rheumatic heart disease. We developed a vaccine candidate to prevent S. pyogenes infections, identified as StreptIn...
A 29-year-old woman sees her physician because she has had a fever and sore throat for the past 3 days. On physical examination, her temperature is 38.0. The pharynx is erythematous, with yellowish tonsillar ℃ exudate. Group A Streptococcus pyogenes is cultured. She is treated with ampicill...
Streptococcus pyogenes, Group AStreptococcus(GAS), is the sole member of Lancefield group A. On blood agar they form small 1 to 2 mm, grey–white colonies with a zone of β-hemolysis.1(seeTable 1). View article Infection and Musculoskeletal Conditions ...
Streptococcus pyogenes Viridans streptococci (in the compromised eye) Anaerobic streptococci (rare) View chapterExplore book Bacterial and Mycotic Diseases of Nonhuman Primates Joe Simmons, Susan Gibson, in Nonhuman Primates in Biomedical Research (Second Edition), Volume 2, 2012 Bacterial Disea...