S S Richter

Summary

Affiliation: University of Iowa
Country: USA

Publications

  1. ncbi request reprint Neisseria meningitidis with decreased susceptibility to penicillin: report from the SENTRY antimicrobial surveillance program, North America, 1998-99
    S S Richter
    Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa, USA
    Diagn Microbiol Infect Dis 41:83-8. 2001
  2. doi request reprint Changing epidemiology of antimicrobial-resistant Streptococcus pneumoniae in the United States, 2004-2005
    Sandra S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA 52242 1009, USA
    Clin Infect Dis 48:e23-33. 2009
  3. doi request reprint Increasing telithromycin resistance among Streptococcus pyogenes in Europe
    Sandra S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, 200 Hawkins Drive, Iowa City, IA 52242 1009, USA
    J Antimicrob Chemother 61:603-11. 2008
  4. pmc Multicenter evaluation of the BD Phoenix Automated Microbiology System for antimicrobial susceptibility testing of Streptococcus species
    Sandra S Richter
    Department of Pathology, University of Iowa Roy J and Lucille A Carver College of Medicine, 200 Hawkins Drive, C606 GH, Iowa City, IA 52242 1009, USA
    J Clin Microbiol 45:2863-71. 2007
  5. ncbi request reprint Macrolide-resistant Streptococcus pyogenes in the United States, 2002-2003
    Sandra S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA 52242 1009, USA
    Clin Infect Dis 41:599-608. 2005
  6. pmc Antifungal susceptibilities of Candida species causing vulvovaginitis and epidemiology of recurrent cases
    Sandra S Richter
    Department of Pathology, University of Iowa Roy J and Lucille A Carver College of Medicine, 200 Hawkins Drive, C606 GH, Iowa City, IA 52242 1009, USA
    J Clin Microbiol 43:2155-62. 2005
  7. ncbi request reprint The molecular epidemiology of Streptococcus pneumoniae with quinolone resistance mutations
    S S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, Iowa City 52242 1009, USA
    Clin Infect Dis 40:225-35. 2005
  8. ncbi request reprint The in vitro activity of daptomycin against Staphylococcus aureus and Enterococcus species
    S S Richter
    Department of Pathology, C606 GH, University of Iowa Roy J and Lucille A Carver College of Medicine, Iowa City, Iowa 52242 1009, USA
    J Antimicrob Chemother 52:123-7. 2003
  9. ncbi request reprint The molecular epidemiology of penicillin-resistant Streptococcus pneumoniae in the United States, 1994-2000
    S S Richter
    Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, IA 52242, USA
    Clin Infect Dis 34:330-9. 2002
  10. pmc Minimizing the workup of blood culture contaminants: implementation and evaluation of a laboratory-based algorithm
    S S Richter
    Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA
    J Clin Microbiol 40:2437-44. 2002

Collaborators

Detail Information

Publications23

  1. ncbi request reprint Neisseria meningitidis with decreased susceptibility to penicillin: report from the SENTRY antimicrobial surveillance program, North America, 1998-99
    S S Richter
    Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa, USA
    Diagn Microbiol Infect Dis 41:83-8. 2001
    ..The serogroup distribution was 40% Y, 28% B, 24% C, 2% W-135, and 6% of strains were nongroupable. The prevalence of N. meningitidis with decreased susceptibility to penicillin in NA appears higher than previous reports...
  2. doi request reprint Changing epidemiology of antimicrobial-resistant Streptococcus pneumoniae in the United States, 2004-2005
    Sandra S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA 52242 1009, USA
    Clin Infect Dis 48:e23-33. 2009
    ....
  3. doi request reprint Increasing telithromycin resistance among Streptococcus pyogenes in Europe
    Sandra S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, 200 Hawkins Drive, Iowa City, IA 52242 1009, USA
    J Antimicrob Chemother 61:603-11. 2008
    ..To assess changes in macrolide and ketolide resistance among Streptococcus pyogenes in Europe and to examine the relationship of resistance to antimicrobial usage...
  4. pmc Multicenter evaluation of the BD Phoenix Automated Microbiology System for antimicrobial susceptibility testing of Streptococcus species
    Sandra S Richter
    Department of Pathology, University of Iowa Roy J and Lucille A Carver College of Medicine, 200 Hawkins Drive, C606 GH, Iowa City, IA 52242 1009, USA
    J Clin Microbiol 45:2863-71. 2007
    ..5 to 7.1%). The mean times required for organism groups to generate results ranged from 8.4 to 9.4 h. The Phoenix system provided reliable and rapid AST results for most of the organism-antimicrobial agent combinations tested...
  5. ncbi request reprint Macrolide-resistant Streptococcus pyogenes in the United States, 2002-2003
    Sandra S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, IA 52242 1009, USA
    Clin Infect Dis 41:599-608. 2005
    ..pyogenes isolates from throughout the United States and to elucidate the mechanisms of resistance and genetic relatedness of macrolide-resistant isolates...
  6. pmc Antifungal susceptibilities of Candida species causing vulvovaginitis and epidemiology of recurrent cases
    Sandra S Richter
    Department of Pathology, University of Iowa Roy J and Lucille A Carver College of Medicine, 200 Hawkins Drive, C606 GH, Iowa City, IA 52242 1009, USA
    J Clin Microbiol 43:2155-62. 2005
    ..These results support the use of azoles for empirical therapy of uncomplicated candidal vulvovaginitis. Recurrent episodes are more often caused by non-albicans species, for which azole agents are less likely to be effective...
  7. ncbi request reprint The molecular epidemiology of Streptococcus pneumoniae with quinolone resistance mutations
    S S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, Iowa City 52242 1009, USA
    Clin Infect Dis 40:225-35. 2005
    ..A second objective was to examine the genetic relatedness of pneumococcal isolates with parC and/or gyrA mutations during the period of 1994-2002...
  8. ncbi request reprint The in vitro activity of daptomycin against Staphylococcus aureus and Enterococcus species
    S S Richter
    Department of Pathology, C606 GH, University of Iowa Roy J and Lucille A Carver College of Medicine, Iowa City, Iowa 52242 1009, USA
    J Antimicrob Chemother 52:123-7. 2003
    ..aureus (MRSA)...
  9. ncbi request reprint The molecular epidemiology of penicillin-resistant Streptococcus pneumoniae in the United States, 1994-2000
    S S Richter
    Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, IA 52242, USA
    Clin Infect Dis 34:330-9. 2002
    ....
  10. pmc Minimizing the workup of blood culture contaminants: implementation and evaluation of a laboratory-based algorithm
    S S Richter
    Medical Microbiology Division, Department of Pathology, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA
    J Clin Microbiol 40:2437-44. 2002
    ..6% of 71 isolates. The laboratory-based algorithm provided an acceptably accurate means for assessing the clinical significance of potential contaminants recovered from blood cultures...
  11. ncbi request reprint Fluoroquinolone resistance in Streptococcus pyogenes
    Sandra S Richter
    Department of Pathology, University of Iowa Healthcare, Iowa City, Iowa 52242, USA
    Clin Infect Dis 36:380-3. 2003
    ..This is the second report of a clinical isolate of S. pyogenes with high-level fluoroquinolone resistance...
  12. pmc Laboratory assays for diagnosis and management of hepatitis C virus infection
    Sandra S Richter
    Department of Pathology, University of Iowa Health Care, Iowa City, Iowa 52242, USA
    J Clin Microbiol 40:4407-12. 2002
  13. ncbi request reprint Macrolide use identified as risk factor for macrolide-resistant Streptococcus pneumoniae in a 17-center case-control study
    S E Beekmann
    Division of Medical Microbiology, Department of Pathology 265 MRC, University of Iowa, Iowa, IA, 52242, USA
    Eur J Clin Microbiol Infect Dis 25:335-9. 2006
    ..pneumoniae. Macrolide resistance was associated with use of any antibiotic during the prior 6 weeks, and was most strongly associated with previous macrolide use...
  14. ncbi request reprint Antimicrobial use in Europe and antimicrobial resistance in Streptococcus pneumoniae
    S Riedel
    Division of Microbiology, Department of Pathology, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242 1009, USA
    Eur J Clin Microbiol Infect Dis 26:485-90. 2007
    ..pneumoniae. There was variation among the different antimicrobial classes as drivers of resistance, with beta-lactams having the strongest association...
  15. ncbi request reprint Antimicrobial resistance in Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis and group A beta-haemolytic streptococci in 2002-2003. Results of the multinational GRASP Surveillance Program
    Susan E Beekmann
    Division of Medical Microbiology, Department of Pathology Roy J and Lucille A Carver University of Iowa College of Medicine, Iowa City, Iowa 52242, USA
    Int J Antimicrob Agents 25:148-56. 2005
    ..influenzae and 80-100% for M. catarrhalis. Antibiotic resistance in S. pneumoniae remains a significant problem world wide...
  16. ncbi request reprint Antimicrobial resistance among Streptococcus pneumoniae in the United States: have we begun to turn the corner on resistance to certain antimicrobial classes?
    Gary V Doern
    Department of Pathology, University of Iowa College of Medicine, Iowa City, IA 52242, USA
    Clin Infect Dis 41:139-48. 2005
    ..This study was undertaken to elucidate the current scope and magnitude of this problem in the United States and to assess resistance trends since 1994-1995...
  17. pmc Decreasing prevalence of beta-lactamase production among respiratory tract isolates of Haemophilus influenzae in the United States
    Kris P Heilmann
    Division of Medical Microbiology, Department of Pathology, Roy J and Lucille A Carver University of Iowa College of Medicine, Iowa City, IA 52242, USA
    Antimicrob Agents Chemother 49:2561-4. 2005
    ..In comparison to the results of four previous national surveys conducted since 1994, the prevalence of beta-lactamase production with this pathogen appears to be decreasing...
  18. pmc Accuracy of phenotypic methods for identification of Streptococcus pneumoniae isolates included in surveillance programs
    Sandra S Richter
    Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa 52242 1009, USA
    J Clin Microbiol 46:2184-8. 2008
    ..9% and 59.3% for optochin susceptibility. Colony morphology was of limited value, as 391 (23.7%) isolates lacked the typical button or mucoid colony appearance of S. pneumoniae...
  19. pmc BD Phoenix and Vitek 2 detection of mecA-mediated resistance in Staphylococcus aureus with cefoxitin
    Alan D Junkins
    Department of Pathology, University of Iowa Carver College of Medicine, 200 Hawkins Drive, Iowa City, IA 52242 1009, USA
    J Clin Microbiol 47:2879-82. 2009
    ..The inclusion of cefoxitin in the Phoenix and Vitek 2 panels has optimized the detection of MRSA by both systems...
  20. pmc Comparison of BD Phoenix AP Workflow with Vitek 2
    Alan D Junkins
    Department of Pathology, C606 GH, University of Iowa, Roy J and Lucille A Carver College of Medicine, 200 Hawkins Drive, Iowa City, IA 52242 1009, USA
    J Clin Microbiol 48:1929-31. 2010
    ..For batches of 14 organisms, the average manual manipulation time per isolate was 89.5 s for BD Phoenix by the use of the AP instrument and 101 s for Vitek 2 (P<0.001)...
  21. pmc Comparison of the BACTEC 9240 and BacT/Alert blood culture systems for detection of bacterial contamination in platelet concentrates
    Stefan Riedel
    Division of Clinical Microbiology and Transfusion Medicine, Department of Pathology, University of Iowa College of Medicine, Iowa City, IA 52242, USA
    J Clin Microbiol 44:2262-4. 2006
    ..Among all comparisons, growth was detected, on average, 1.7 h sooner with the BACTEC system. The differences in length of time to detection were statistically significant...
  22. pmc Multicenter evaluation of BBL CHROMagar MRSA medium for direct detection of methicillin-resistant Staphylococcus aureus from surveillance cultures of the anterior nares
    Diane Flayhart
    Division of Medical Microbiology, Meyer B1 193, The Johns Hopkins Hospital, 600 N Wolfe St, Baltimore, MD 21287, USA
    J Clin Microbiol 43:5536-40. 2005
    ....
  23. pmc Timing of specimen collection for blood cultures from febrile patients with bacteremia
    Stefan Riedel
    University of Iowa Hospitals and Clinics, Department of Pathology Division of Microbiology, 200 Hawkins Drive, C 606 GH, Iowa City, IA 52242 1009, USA
    J Clin Microbiol 46:1381-5. 2008
    ..A subset analysis based on patient age, gender, white blood cell count and specific cause of bacteremia generally also failed to reveal any associations...