Streptococci Viridans
Mostrando 1-12 de 236 artigos, teses e dissertações.
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1. Susceptibility rates in Latin American nations: report from a regional resistance surveillance program (2011)
OBJECTIVE: To establish a resistance (R) surveillance program monitoring antimicrobial susceptibility patterns in Latin America (LATAM; Argentina [ARG], Brazil [BRA], Chile, Colombia [CBA], Costa Rica, Ecuador [ECU], Guatemala [GUA], Mexico [MEX], Panama [PAN], Peru, and Venezuela [VEN]). METHODS: In 2011, 4979 organisms were collected from 11 nations (20 la
Braz J Infect Dis. Publicado em: 2013-12
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2. Spectrum and potency of ceftaroline against leading pathogens causing community-acquired respiratory tract and skin and soft tissue infections in Latin America, 2010
Ceftaroline, the active metabolite of the prodrug ceftaroline fosamil, is a cephalosporin with in vitro bactericidal activity against Gram-positive organisms, including methicillinsusceptible and -resistant Staphylococcus aureus, β-haemolytic and viridans group streptococci, and Streptococcus pneumoniae, as well as common Gram-negative organisms. In this st
Braz J Infect Dis. Publicado em: 2013-10
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3. Avaliação da microbiota bucal em pacientes sob uso crônico de penicilina G benzatina / Evaluation of oral microbiota in patients on chronic use of benzathine penicillin
A Febre Reumática, complicação tardia de uma infecção de orofaringe causada pelo Streptococcus pyogenes (estreptococo -hemolítico do grupo A de Lancefield), tem como conseqüência a Cardiopatia Reumática, explicada pelo mimetismo molecular entre proteínas cardíacas humanas e a associação de proteínas e carboidratos da membrana do S. pyogenes. A
Publicado em: 2009
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4. Evaluation of antimicrobial resistance os Staphylococcus aureus and viridans streptococci of patients at risk for infecrive endocarditis / Avaliação da resistencia a antimicrobianos de Staphylococcus aureus e estreptococos grupo Viridans de pacientes com risco a endocartide infecciosa
A endocardite infecciosa (EI) é uma infecção grave das válvulas cardíacas, do endocárdio mural e de septos defeituosos, provocada principalmente pelos Staphylococcus aureus e pelos estreptococos grupo viridans. O objetivo deste trabalho foi verificar a resistência aos antimicrobianos de cepas de Staphylococcus aureus e estreptococos grupo viridans pro
Publicado em: 2006
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5. In vitro activity of tigecycline, a new glycylcycline, tested against 1,326 clinical bacterial strains isolated from Latin America
The in vitro activity of tigecycline (former GAR-936), a new semisynthetic tetracycline, was evaluated in comparison with tetracycline and other antimicrobial agents. MATERIAL AND METHODS: A total of 1,326 contemporary clinical isolates collected from the Latin American region were collected in 2000-2002 period and tested with microdilution broth according t
Brazilian Journal of Infectious Diseases. Publicado em: 2005-10
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6. Características laboratoriais das ceratites e conjuntivites causadas por Streptococcus sp
OBJETIVOS: Analisar os resultados laboratoriais de conjuntivites e ceratites com cultura positiva para Streptococcus sp, avaliando a incidência das diferentes espécies e os dados dos antibiogramas. MÉTODOS: Estudo retrospectivo de revisão de prontuários de pacientes encaminhados ao laboratório de Doenças Externas do Departamento de Oftalmologia da UNI
Arquivos Brasileiros de Oftalmologia. Publicado em: 2004-10
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7. Broad-Host-Range Shuttle Vectors for Screening of Regulated Promoter Activity in Viridans Group Streptococci: Isolation of a pH-Regulated Promoter
Viridans group streptococci are major constituents of the normal human oral flora and are also identified as the predominant pathogenic bacteria in native valve infective endocarditis. Little information is available regarding the regulation of gene expression in viridans group streptococci, either in response to changes in the oral environment or during dev
American Society for Microbiology.
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8. Protection of Chicken Embryos by Viridans Streptococci Against the Lethal Effect of Staphylococcus aureus
Chicken embryos were used to investigate the mechanism by which viridans streptococci inhibit the growth of pathogenic staphylococci. Ten-day-old embryonated eggs were infected allantoically. At a concentration of 1.8 × 102 colony-forming units (CFU) of viridans streptococci, the percentage of fatalities was less than 10%. There was 80% fatality with 8 × 1
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9. Detection of group D and viridans streptococci in blood by radiometric methods.
A prospective study was conducted to evaluate the radiometric detection of group D and viridans streptococci in blood, using three media preparations, Bactec 6A and 6B isotonic media and 8B hypertonic medium. All enterococci tested were detected by the 6A and 6B media. However, the 6A medium failed to detect 76% of the Streptococcus bovis isolates and 57% of
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10. PCR-Based Methods for Genotyping Viridans Group Streptococci
Standard repetitive extragenic palindromic (REP)-PCR, enterobacterial repetitive intergenic consensus-PCR, and Salmonella enteritidis repetitive element-PCR methods for bacterial strain typing were performed with DNA extracted by boiling members of each of the currently recognized species of human viridans group streptococci. Each of the methods was reproduc
American Society for Microbiology.
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11. Accuracy and reproducibility of the IDS rapID STR system for species identification of streptococci.
The RapID STR system (Innovative Diagnostic Systems, Inc., Atlanta, Ga.) was evaluated in the identification of 266 streptococci. Organisms included 60 beta-hemolytic streptococci, 71 group D strains (48 enterococci and 23 nonenterococci), 26 Streptococcus pneumoniae, and 109 viridans group strains. With concomitant optochin testing, as is currently recommen
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12. High incidence of erythromycin-resistant streptococci in Taiwan.
The activities of nine antimicrobial agents against 247 isolates of group B, C, F, and G streptococci and viridans group streptococci were studied by the broth microdilution method. Erythromycin resistance was found in 29.7, 41.7, 81.8, 23.5, and 53.3% of the strains of group B, C, F, and G streptococci and viridans group streptococci tested, respectively. M