Cheryl Cohen

Summary

Affiliation: National Institute for Communicable Diseases
Country: South Africa

Publications

  1. pmc Influenza-related mortality among adults aged 25-54 years with AIDS in South Africa and the United States of America
    Cheryl Cohen
    National Institute for Communicable Diseases of the National Health Laboratory Service, University of the Witwatersrand, Johannesburg, South Africa
    Clin Infect Dis 55:996-1003. 2012
  2. pmc Vaccine effectiveness estimates, 2004-2005 mumps outbreak, England
    Cheryl Cohen
    National Institute for Communicable Diseases, Johannesburg, South Africa
    Emerg Infect Dis 13:12-7. 2007
  3. pmc Epidemiology and molecular virus characterization of reemerging rabies, South Africa
    Cheryl Cohen
    National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
    Emerg Infect Dis 13:1879-86. 2007
  4. pmc Elevated influenza-related excess mortality in South African elderly individuals, 1998-2005
    Cheryl Cohen
    National Institute for Communicable Diseases of the National Health Laboratory Service, South Africa
    Clin Infect Dis 51:1362-9. 2010
  5. doi request reprint Increased incidence of meningococcal disease in HIV-infected individuals associated with higher case-fatality ratios in South Africa
    Cheryl Cohen
    National Institute for Communicable Diseases, Johannesburg, South Africa
    AIDS 24:1351-60. 2010
  6. pmc An unusual pneumococcal sequence type is the predominant cause of serotype 3 invasive disease in South Africa
    Kedibone M Mothibeli
    Respiratory and Meningeal Pathogens Research Unit, National Institute for Communicable Diseases, Medical Research Council, University of the Witwatersrand, Johannesburg, South Africa
    J Clin Microbiol 48:184-91. 2010
  7. pmc Neisseria meningitidis intermediately resistant to penicillin and causing invasive disease in South Africa in 2001 to 2005
    Mignon du Plessis
    National Institute for Communicable Diseases of the National Health Laboratory Service, University of the Witwatersrand, Johannesburg, South Africa
    J Clin Microbiol 46:3208-14. 2008
  8. doi request reprint Serotype 6C is associated with penicillin-susceptible meningeal infections in human immunodeficiency virus (HIV)-infected adults among invasive pneumococcal isolates previously identified as serotype 6A in South Africa
    Mignon du Plessis
    National Institute for Communicable Diseases, Sandringham, South Africa
    Int J Antimicrob Agents 32:S66-70. 2008
  9. doi request reprint Emergence of levofloxacin-non-susceptible Streptococcus pneumoniae and treatment for multidrug-resistant tuberculosis in children in South Africa: a cohort observational surveillance study
    Anne Von Gottberg
    National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
    Lancet 371:1108-13. 2008
  10. pmc Measles outbreak in South Africa: epidemiology of laboratory-confirmed measles cases and assessment of intervention, 2009-2011
    Genevie M Ntshoe
    Centre for Vaccines and Immunology, National Institute for Communicable Diseases NICD of the National Health Laboratory Service NHLS, Johannesburg, South Africa
    PLoS ONE 8:e55682. 2013

Collaborators

Detail Information

Publications31

  1. pmc Influenza-related mortality among adults aged 25-54 years with AIDS in South Africa and the United States of America
    Cheryl Cohen
    National Institute for Communicable Diseases of the National Health Laboratory Service, University of the Witwatersrand, Johannesburg, South Africa
    Clin Infect Dis 55:996-1003. 2012
    ..We compared influenza-related mortality in adults with AIDS in South Africa and the United States in the pre-HAART era and evaluated mortality trends after HAART introduction in the United States...
  2. pmc Vaccine effectiveness estimates, 2004-2005 mumps outbreak, England
    Cheryl Cohen
    National Institute for Communicable Diseases, Johannesburg, South Africa
    Emerg Infect Dis 13:12-7. 2007
    ..5%) in 5- to 6-year-olds to 86% (95% CI 74%-93%) in 11- to 12-year-olds (p<0.001 for 1 or 2 doses). Waning immunity may contribute to mumps outbreaks in older vaccinated populations...
  3. pmc Epidemiology and molecular virus characterization of reemerging rabies, South Africa
    Cheryl Cohen
    National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
    Emerg Infect Dis 13:1879-86. 2007
    ..Delayed recognition of the human cases may have resulted from decreased clinical suspicion after many years of effective control of the disease and the occurrence of atypical clinical presentations...
  4. pmc Elevated influenza-related excess mortality in South African elderly individuals, 1998-2005
    Cheryl Cohen
    National Institute for Communicable Diseases of the National Health Laboratory Service, South Africa
    Clin Infect Dis 51:1362-9. 2010
    ..We aimed to compare influenza-related mortality among individuals aged ≥65 years in South Africa and the United States...
  5. doi request reprint Increased incidence of meningococcal disease in HIV-infected individuals associated with higher case-fatality ratios in South Africa
    Cheryl Cohen
    National Institute for Communicable Diseases, Johannesburg, South Africa
    AIDS 24:1351-60. 2010
    ..We aimed to compare the incidence of meningococcal disease amongst HIV-infected and uninfected individuals and to evaluate whether HIV is a risk factor for mortality and bacteremia amongst patients with meningococcal disease...
  6. pmc An unusual pneumococcal sequence type is the predominant cause of serotype 3 invasive disease in South Africa
    Kedibone M Mothibeli
    Respiratory and Meningeal Pathogens Research Unit, National Institute for Communicable Diseases, Medical Research Council, University of the Witwatersrand, Johannesburg, South Africa
    J Clin Microbiol 48:184-91. 2010
    ..We have therefore identified ST458 as predominating in South Africa, but with an invasive potential similar to that of the predominant global clone ST180...
  7. pmc Neisseria meningitidis intermediately resistant to penicillin and causing invasive disease in South Africa in 2001 to 2005
    Mignon du Plessis
    National Institute for Communicable Diseases of the National Health Laboratory Service, University of the Witwatersrand, Johannesburg, South Africa
    J Clin Microbiol 46:3208-14. 2008
    ..This is the first report describing the prevalence and molecular epidemiology of Pen(i) meningococcal isolates from sub-Saharan Africa...
  8. doi request reprint Serotype 6C is associated with penicillin-susceptible meningeal infections in human immunodeficiency virus (HIV)-infected adults among invasive pneumococcal isolates previously identified as serotype 6A in South Africa
    Mignon du Plessis
    National Institute for Communicable Diseases, Sandringham, South Africa
    Int J Antimicrob Agents 32:S66-70. 2008
    ..Our data from the vaccine efficacy trial suggest that cross-protection of the conjugate vaccine is against true serotype 6A strains...
  9. doi request reprint Emergence of levofloxacin-non-susceptible Streptococcus pneumoniae and treatment for multidrug-resistant tuberculosis in children in South Africa: a cohort observational surveillance study
    Anne Von Gottberg
    National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
    Lancet 371:1108-13. 2008
    ..Our aim was to estimate the incidence of, and risk factors for, invasive pneumococcal disease caused by fluoroquinolone-resistant Streptococcus pneumoniae in children in South Africa...
  10. pmc Measles outbreak in South Africa: epidemiology of laboratory-confirmed measles cases and assessment of intervention, 2009-2011
    Genevie M Ntshoe
    Centre for Vaccines and Immunology, National Institute for Communicable Diseases NICD of the National Health Laboratory Service NHLS, Johannesburg, South Africa
    PLoS ONE 8:e55682. 2013
    ..We describe the epidemiology of laboratory-confirmed measles case-patients and assess the impact of the nationwide mass vaccination campaign during the 2009 to 2011 measles outbreak in South Africa...
  11. doi request reprint The impact of antiretroviral treatment on the burden of invasive pneumococcal disease in South African children: a time series analysis
    Marta C Nunes
    Medical Research Council Respiratory and Meningeal Pathogens Research Unit and Department of Science and Technology National Research Foundation Vaccine Preventable Diseases, University of the Witwatersrand, South Africa
    AIDS 25:453-62. 2011
    ..A national antiretroviral program was initiated in South Africa in 2004. This study evaluates the impact of the highly active antiretroviral therapy (HAART) treatment program on the burden of IPD among African children...
  12. doi request reprint Systemic shigellosis in South Africa
    Karen H Keddy
    Centre for Enteric Diseases, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
    Clin Infect Dis 54:1448-54. 2012
    ..We examined the clinical and microbiologic characteristics of systemic shigellosis in South Africa, where rates of HIV infection are high...
  13. doi request reprint Epidemiology of invasive pneumococcal disease in the pre-conjugate vaccine era: South Africa, 2003-2008
    Anne Von Gottberg
    National Institute for Communicable Diseases NICD of the National Health Laboratory Service NHLS, Johannesburg, South Africa
    Vaccine 31:4200-8. 2013
    ....
  14. doi request reprint Evolutionary dynamics of 2009 pandemic influenza A virus subtype H1N1 in South Africa during 2009-2010
    Marietjie Venter
    National Institute for Communicable Diseases Division, National Health Laboratory Service, Department of Medical Virology, University of Pretoria, Johannesburg, South Africa
    J Infect Dis 206:S166-72. 2012
    ....
  15. pmc Persistent high burden of invasive pneumococcal disease in South African HIV-infected adults in the era of an antiretroviral treatment program
    Marta C Nunes
    Department of Science and Technology National Research Foundation, Vaccine Preventable Diseases and Medical Research Council, Respiratory and Meningeal Pathogens Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
    PLoS ONE 6:e27929. 2011
    ..The aim of this study was to evaluate trends in IPD hospitalizations in HIV-infected adults in Soweto, South Africa, associated with up-scaling of the HAART program from 2003 to 2008...
  16. doi request reprint A comparison of cases of paediatric-onset and adult-onset cryptococcosis detected through population-based surveillance, 2005-2007
    Susan T Meiring
    National Institute for Communicable Diseases, National Health Laboratory Service, Sandringham, South Africa
    AIDS 26:2307-14. 2012
    ..We compared the epidemiology of laboratory-confirmed paediatric cryptococcal disease with adult-onset disease in the South African population...
  17. doi request reprint Introduction of pneumococcal conjugate vaccine into the public immunization program in South Africa: translating research into policy
    Shabir A Madhi
    National Institute for Communicable Diseases, A Division of the National Health Laboratory Service, Johannesburg, South Africa
    Vaccine 30:C21-7. 2012
    ..This schedule was largely premised on containing the cost of vaccine introduction, whilst including a booster dose of PCV to assist in prolonging the duration of protection in HIV-infected children...
  18. doi request reprint Invasive disease due to Haemophilus influenzae serotype b ten years after routine vaccination, South Africa, 2003-2009
    Anne Von Gottberg
    National Institute for Communicable Diseases NICD of the National Health Laboratory Service NHLS, Johannesburg, South Africa
    Vaccine 30:565-71. 2012
    ..Following initial declines in Hib disease, national surveillance has identified increasing numbers of Hib disease episodes in fully vaccinated children...
  19. pmc Risk factors for multidrug-resistant invasive pneumococcal disease in South Africa, a setting with high HIV prevalence, in the prevaccine era from 2003 to 2008
    Penny Crowther-Gibson
    Division of Public Health Surveillance and Response, National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa
    Antimicrob Agents Chemother 56:5088-95. 2012
    ..The effect of many of the MDR risk factors could be reduced by more judicious use of antibiotics. Because PCV13 serotypes account for most MDR infections, pneumococcal vaccination may reduce the prevalence of multidrug resistance...
  20. doi request reprint Emergence of endemic serogroup W135 meningococcal disease associated with a high mortality rate in South Africa
    Anne Von Gottberg
    Respiratory and Meningeal Pathogens Research, National Institute for Communicable Diseases, Private Bag X4, Sandringham, 2131, Gauteng, South Africa
    Clin Infect Dis 46:377-86. 2008
    ..In the African meningitis belt, Neisseria meningitidis serogroup W135 has emerged as a cause of epidemic disease. The establishment of W135 as the predominant cause of endemic disease has not been described...
  21. doi request reprint Molecular basis and clonal nature of increasing pneumococcal macrolide resistance in South Africa, 2000-2005
    Nicole Wolter
    Respiratory and Meningeal Pathogens Research Unit, National Institute for Communicable Diseases, Medical Research Council and University of the Witwatersrand, Sandringham, South Africa
    Int J Antimicrob Agents 32:62-7. 2008
    ..Routine use of the 7-valent pneumococcal conjugate vaccine (PCV-7) could reduce the burden of macrolide-resistant pneumococcal disease in South Africa...
  22. doi request reprint Respiratory viral coinfections identified by a 10-plex real-time reverse-transcription polymerase chain reaction assay in patients hospitalized with severe acute respiratory illness--South Africa, 2009-2010
    Marthi A Pretorius
    National Institute for Communicable Diseases, National Health Laboratory Service, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
    J Infect Dis 206:S159-65. 2012
    ....
  23. doi request reprint Increased risk of death in human immunodeficiency virus-infected children with pneumococcal meningitis in South Africa, 2003-2005
    Peter Nyasulu
    School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
    Pediatr Infect Dis J 30:1075-80. 2011
    ..Pneumococcal disease is a major global cause of morbidity and mortality. This study evaluated risk factors for mortality in children with pneumococcal meningitis and other invasive pneumococcal diseases (IPD)...
  24. pmc Introduction of 2009 pandemic influenza A virus subtype H1N1 into South Africa: clinical presentation, epidemiology, and transmissibility of the first 100 cases
    Brett N Archer
    National Institute for Communicable Diseases, National Health Laboratory Service, University of Witwatersrand, Johannesburg, South Africa
    J Infect Dis 206:S148-53. 2012
    ..We documented the introduction of 2009 pandemic influenza A virus subtype H1N1 (A[H1N1]pdm09) into South Africa and describe its clinical presentation, epidemiology, and transmissibility...
  25. ncbi request reprint Analysis of a temporal cluster of Shigella boydii isolates in Mpumalanga, South Africa, November to December 2007
    Anthony M Smith
    National Institute for Communicable Diseases, Johannesburg
    J Infect Dev Ctries 3:65-70. 2009
    ..In the present study, we report on the analysis of a temporal cluster of 29 S. boydii serotype 2 strains, isolated in the Mpumalanga Province of South Africa (SA) over the period of November to December 2007...
  26. doi request reprint Twenty-five years of outpatient influenza surveillance in South Africa, 1984-2008
    Johanna M McAnerney
    National Institute for Communicable Diseases of the National Health Laboratory Services, Johannesburg, South Africa
    J Infect Dis 206:S153-8. 2012
    ..The aim of this manuscript is to describe the trends and epidemiology of outpatient influenza in South Africa prior to the influenza A(H1N1) pandemic...
  27. ncbi request reprint Increased prevalence of severe malaria in HIV-infected adults in South Africa
    Cheryl Cohen
    Division of Clinical Microbiology and Infectious Diseases, University of the Witwatersrand, National Health Laboratory Service, Johannesburg, South Africa
    Clin Infect Dis 41:1631-7. 2005
    ..We aimed to assess the effect of HIV infection status, advancing immunosuppression, and antimalarial immunity on the severity of malaria...
  28. pmc Reproductive number and serial interval of the first wave of influenza A(H1N1)pdm09 virus in South Africa
    Brett N Archer
    National Institute for Communicable Diseases NICD, National Health Laboratory Service NHLS, Johannesburg, Gauteng, South Africa
    PLoS ONE 7:e49482. 2012
    ....
  29. pmc Nosocomial outbreak of novel arenavirus infection, southern Africa
    Janusz T Paweska
    National Institute for Communicable Diseases, Sandringham, South Africa
    Emerg Infect Dis 15:1598-602. 2009
    ..Three cases involved secondary spread of infection from the first patient, and 1 was a tertiary infection. A novel arenavirus was identified. The source of the first patient's infection remains undetermined...
  30. ncbi request reprint Cryptococcosis in Gauteng: implications for monitoring of HIV treatment programmes
    Kerrigan M McCarthy
    S Afr Med J 98:452, 454. 2008