World's Best Scientists 2026 revealed!
Katherine L. O’Brien

Katherine L. O’Brien

D-Index & Metrics

Microbiology

D-Index
91
Citations
42884
World Ranking
636
National Ranking
295

Medicine

D-Index
91
Citations
43043
World Ranking
11555
National Ranking
5929

Overview

Katherine L. O'Brien is affiliated with Johns Hopkins University in the United States. Their research focuses extensively on medicine, with particular emphasis on epidemiology, infectious diseases, health, pulmonary and respiratory medicine, and public health, environmental and occupational health.

The scientist's main topics of study include pneumonia and respiratory infections, respiratory viral infections research, vaccine coverage and hesitancy, influenza virus research studies, Pneumocystis jirovecii pneumonia detection and treatment, SARS-CoV-2 and COVID-19 research, and bacterial infections and vaccines.

O'Brien has published significantly in several venues, with frequent publications appearing in:

  • The Pediatric Infectious Disease Journal
  • SSRN Electronic Journal
  • Vaccine
  • The Lancet Global Health
  • Journal of Pediatric and Adolescent Gynecology

Recent papers authored or co-authored by O'Brien include:

  • "Global burden of respiratory infections associated with seasonal influenza in children under 5 years in 2018: a systematic review and modelling study" (2020, The Lancet Global Health)
  • "Contribution of vaccination to improved survival and health: modelling 50 years of the Expanded Programme on Immunization" (2024, The Lancet)
  • "Global burden of acute lower respiratory infection associated with human metapneumovirus in children under 5 years in 2018: a systematic review and modelling study" (2020, The Lancet Global Health)
  • "The World of Immunization: Achievements, Challenges, and Strategic Vision for the Next Decade" (2021, The Journal of Infectious Diseases)
  • "Duration of Effectiveness of Vaccines Against SARS-CoV-2 Infection and COVID-19 Disease: Results of a Systematic Review and Meta-Regression" (2021, SSRN Electronic Journal)

Frequent co-authors of O'Brien include:

  • Maria Deloria Knoll
  • Laura L. Hammitt
  • Christine Prosperi
  • Daniel R. Feikin
  • David R. Murdoch

Best Publications

  • Global burden of acute lower respiratory infections due to respiratory syncytial virus in young children: a systematic review and meta-analysis

    Harish Nair;Harish Nair;D James Nokes;D James Nokes;Bradford D. Gessner;Mukesh K Dherani

  • Burden of disease caused by Streptococcus pneumoniae in children younger than 5 years: global estimates

    Katherine L O'Brien;Lara J Wolfson;James P Watt;Emily Henkle

  • Global, regional, and national disease burden estimates of acute lower respiratory infections due to respiratory syncytial virus in young children in 2015: a systematic review and modelling study

    Ting Shi;David A. McAllister;Katherine L. O'Brien;Eric A. F. Simoes

  • Global burden of childhood pneumonia and diarrhoea

    Christa L Fischer Walker;Igor Rudan;Li Liu;Harish Nair;Harish Nair

  • Safety and Efficacy of a Pentavalent Human–Bovine (WC3) Reassortant Rotavirus Vaccine

    Timo Vesikari;David O Matson;Penelope Dennehy;Pierre Van Damme

  • Single-dose administration and the influence of the timing of the booster dose on immunogenicity and efficacy of ChAdOx1 nCoV-19 (AZD1222) vaccine: a pooled analysis of four randomised trials.

    M Voysey;S A Costa Clemens;S A Madhi;L Y Weckx

  • Burden of Streptococcus pneumoniae and Haemophilus influenzae type b disease in children in the era of conjugate vaccines: global, regional, and national estimates for 2000–15

    Brian Wahl;Katherine L O'Brien;Adena Greenbaum;Anwesha Majumder

  • Causes of severe pneumonia requiring hospital admission in children without HIV infection from Africa and Asia: the PERCH multi-country case-control study

    Katherine L. O'Brien;Henry C. Baggett;W. Abdullah Brooks;Daniel R. Feikin

  • Standardized interpretation of paediatric chest radiographs for the diagnosis of pneumonia in epidemiological studies

    Thomas Cherian;E. Kim Mulholland;John B. Carlin;Harald Ostensen

  • The fundamental link between pneumococcal carriage and disease

    Birgit Simell;Kari Auranen;Helena Käyhty;David Goldblatt

  • Epidemiology and etiology of childhood pneumonia in 2010: estimates of incidence, severe morbidity, mortality, underlying risk factors and causative pathogens for 192 countries.

    Igor Rudan;Katherine L. O’Brien;Harish Nair;Li Liu

  • Systematic evaluation of serotypes causing invasive pneumococcal disease among children under five: the pneumococcal global serotype project.

    Hope L. Johnson;Maria Deloria-Knoll;Orin S. Levine;Sonia K. Stoszek

  • Burden of disease caused by Haemophilus influenzae type b in children younger than 5 years: global estimates.

    James P. Watt;Lara J. Wolfson;Katherine L O'Brien;Emily Henkle

  • Standard method for detecting upper respiratory carriage of Streptococcus pneumoniae: updated recommendations from the World Health Organization Pneumococcal Carriage Working Group.

    Catherine Satzke;Catherine Satzke;Paul Turner;Paul Turner;Anni Virolainen-Julkunen;Peter V. Adrian

  • Efficacy and safety of seven-valent conjugate pneumococcal vaccine in American Indian children: group randomised trial

    Katherine L O'Brien;Lawrence H Moulton;Raymond Reid;Robert Weatherholtz

  • Serotype-specific changes in invasive pneumococcal disease after pneumococcal conjugate vaccine introduction: a pooled analysis of multiple surveillance sites.

    Daniel R. Feikin;Eunice W. Kagucia;Jennifer D. Loo;Ruth Link-Gelles

  • Estimating the Burden of Pneumococcal Pneumonia among Adults: A Systematic Review and Meta-Analysis of Diagnostic Techniques

    Unknown

  • Report from a WHO working group: standard method for detecting upper respiratory carriage of Streptococcus pneumoniae

    Katherine L O'Brien;Hanna Nohynek;Hanna Nohynek

  • Global burden of respiratory infections associated with seasonal influenza in children under 5 years in 2018: a systematic review and modelling study.

    Xin Wang;You Li;Katherine L. O'Brien;Shabir A. Madhi

  • Epidemiology of Invasive Group A Streptococcus Disease in the United States, 1995–1999

    Katherine L O'Brien;Bernard Beall;Nancy L Barrett;Paul R Cieslak

  • Effectiveness of seven-valent pneumococcal conjugate vaccine against invasive pneumococcal disease: a matched case-control study.(Clinical report)

    Katherine L. O'brien;Orin S. Levine;Cynthia G. Whitney;Tamar Pilishvili

  • The fundamental link between pneumococcal carriage and disease

    Birgit Simell;Kari Auranen;Helena Kayhty;David Goldblatt

Frequent Co-Authors

Mathuram Santosham
Mathuram Santosham Johns Hopkins University
J. Anthony G. Scott
J. Anthony G. Scott University of London
Shabir A. Madhi
Shabir A. Madhi University of the Witwatersrand
David R. Murdoch
David R. Murdoch University of Otago
Maria Deloria Knoll
Maria Deloria Knoll Johns Hopkins University
Daniel R. Feikin
Daniel R. Feikin Centers for Disease Control and Prevention
David Goldblatt
David Goldblatt University College London
Cynthia G. Whitney
Cynthia G. Whitney Emory University
Ruth A. Karron
Ruth A. Karron Johns Hopkins University
W. Abdullah Brooks
W. Abdullah Brooks Johns Hopkins University

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