Resistance to Levofloxacin and Failure of Treatment of Pneumococcal Pneumonia von Davidson, Ross, Cavalcanti, Rodrigo, Brunton, James L, Bast, Darrin J, de Azavedo, Joyce C.S, Kibsey, Pamela, Fleming, Christine, Low, Donald E

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Identification of Group A Streptococcus Antigenic Determinants Upregulated In Vivo von Salim, Kowthar Y, Cvitkovitch, Dennis G, Chang, Peter, Bast, Darrin J, Handfield, Martin, Hillman, Jeffrey D, de Azavedo, Joyce C. S

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Streptolysin S and necrotising infections produced by group G streptococcus von Humar, Deepali, Datta, Vivekananda, Bast, Darrin J, Beall, Bernard, De Azavedo, Joyce CS, Nizet, Victor

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Novel Murine Model of Pneumococcal Pneumonia: Use of Temperature as a Measure of Disease Severity To Compare the Efficacies of Moxifloxacin and Levofloxacin von BAST, Darrin J, YUE, M, CHEN, X, BELL, D, DRESSER, L, SASKIN, R, MANDELL, L. A, LOW, D. E, DE AZAVEDO, Joyce C. S

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Type II topoisomerase mutations in Bacillus anthracis associated with high-level fluoroquinolone resistance von Bast, Darrin J., Athamna, Abed, Duncan, Carla L., de Azavedo, Joyce C. S., Low, Donald E., Rahav, Galia, Farrell, David, Rubinstein, Ethan

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Prevalence and Characterization of Invasive Isolates of Streptococcus pyogenes with Reduced Susceptibility to Fluoroquinolones von POWIS, Jeff, MCGEER, Allison, LOW, Donald E, DUNCAN, Carla, GOREN, Ryan, DE AZAVEDO, Joyce C. S, BAST, Darrin J, PONG-PORTER, Sylvia, MAZZULLI, Tony, GREEN, Karen, WILLEY, Barbara

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Identification of a Streptolysin S-Associated Gene Cluster and Its Role in the Pathogenesis of Streptococcus iniae Disease von FULLER, Jeffrey D, CAMUS, Alvin C, DUNCAN, Carla L, NIZET, Victor, BAST, Darrin J, THUNE, Ronald L, LOW, Donald E, DE AZAVEDO, Joyce C. S

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Prevalence and Mechanisms of Macrolide Resistance in Invasive and Noninvasive Group B Streptococcus Isolates from Ontario, Canada von DE AZAVEDO, Joyce C. S, MCGAVIN, Mary, DUNCAN, Carla, LOW, Donald E, MCGEER, Allison

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Decreased Susceptibility of Streptococcus pneumoniae to Fluoroquinolones in Canada von Chen, Danny K, McGeer, Allison, de Azavedo, Joyce C, Low, Donald E

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two-component system sivS/R regulates virulence in Streptococcus iniae von Bolotin, Shelly, Fuller, Jeffrey D, Bast, Darrin J, de Azavedo, Joyce C.S

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Role for sagA and siaA in Quorum Sensing and Iron Regulation in Streptococcus pyogenes von Salim, Kowthar Y, de Azavedo, Joyce C, Bast, Darrin J, Cvitkovitch, Dennis G

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Capsule expression regulated by a two-component signal transduction system in Streptococcus iniae von Bolotin, Shelly, Fuller, Jeffrey D, Bast, Darrin J, Beveridge, Terry J, de Azavedo, Joyce C.S

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Activities of New Fluoroquinolones, Ketolides, and Other Antimicrobials against Blood Culture Isolates of Viridans Group Streptococci from across Canada, 2000 von GERSHON, Andrea S, DE AZAVEDO, Joyce C. S, GOURDEAU, Marie, MURRAY, Gilles, LOW, Donald E, MCGEER, Allison, OSTROWSKA, Krystyna I, CHURCH, Deirdre, HOBAN, Daryl J, HARDING, Godfrey K. M, WEISS, Karl, ABBOTT, Lewis, SMAILL, Fiona

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Streptococcus iniae Virulence Is Associated with a Distinct Genetic Profile von FULLER, Jeffrey D, BAST, Darrin J, NIZET, Victor, LOW, Donald E, DE AZAVEDO, Joyce C. S

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Genetic Locus for Streptolysin S Production by Group A Streptococcus von NIZET, V, BEALL, B, BAST, D. J, DATTA, V, KILBURN, L, LOW, D. E, DE AZAVEDO, J. C. S

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Regulation of sagA, siaA and scpC by SilCR, a putative signaling peptide of Streptococcus pyogenes von Salim, Kowthar Y, de Azavedo, Joyce C, Bast, Darrin J, Cvitkovitch, Dennis G

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Reduced Virulence of Group A Streptococcal Tn916 Mutants That Do Not Produce Streptolysin S von BETSCHEL, S. D, BORGIA, S. M, BARG, N. L, LOW, D. E, DE AZAVEDO, J. C. S

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Fluoroquinolone resistance in clinical isolates of Streptococcus pneumoniae : Contributions of type II topoisomerase mutations and efflux to levels of resistance von BAST, Darrin J, LOW, Donald E, DUNCAN, Carla L, KILBURN, Laurie, MANDELL, Lionel A, DAVIDSON, Ross J, DE AZAVEDO, Joyce C. S

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Interspecies Recombination Contributes Minimally to Fluoroquinolone Resistance in Streptococcus pneumoniae von BAST, Darrin J, DE AZAVEDO, Joyce C. S, TAM, Tiffany Y, KILBURN, Laurie, DUNCAN, Carla, MANDELL, Lionel A, DAVIDSON, Ross J, LOW, Donald E

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Quinolone Resistance: Older Concepts and Newer Developments von Bast, Darrin J., de Azavedo, Joyce C. S.

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