Karen Stefonek

2.6k citations

13 papers · 1.9k indexed · 1 hit paper · h-index 12

Epidemiology top 2%
Public Health, Environmental and Occupational Health top 1%
Microbiology top 1%
Infectious Diseases top 5%
General Health Professions top 10%

Co-authors: Lee H. Harrison Anne Schuchat Elizabeth R. Zell Monica M. Farley Arthur Reingold Lewis B. Lefkowitz Ruth Lynfield Stephanie J. Schrag
Topics: Streptococcal Infections and Treatments (7 papers)Pneumonia and Respiratory Infections (6 papers)Neonatal and Maternal Infections (6 papers)
Cited by: Microbiology Applied Microbiology and Biotechnology Epidemiology
Journals: New England Journal of MedicineSHILAP Revista de lepidopterologíaClinical Infectious Diseases
Partner nations: United States

In The Last Decade

Karen Stefonek

13 papers receiving 1.8k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Active Bacterial Core Surveillance of the Emerging Infections Program Network

2001 501 citations Anne Schuchat, Elizabeth R. Zell et al. Emerging infectious diseases profile →

Peers

Countries citing papers authored by Karen Stefonek

Since Specialization

Citations

This map shows the geographic impact of Karen Stefonek's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Karen Stefonek with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Karen Stefonek more than expected).

Fields of papers citing papers by Karen Stefonek

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karen Stefonek. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Karen Stefonek. The network helps show where Karen Stefonek may publish in the future.

Co-authorship network of co-authors of Karen Stefonek

This figure shows the co-authorship network connecting the top 25 collaborators of Karen Stefonek. A scholar is included among the top collaborators of Karen Stefonek based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Karen Stefonek. Karen Stefonek is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

13 of 13 papers shown

#	Work	Indexed citations
1	Increasing Burden of Invasive Group B Streptococcal Disease in Nonpregnant Adults, 1990–2007 2009 ·Clinical Infectious Diseases ·Tami H. Skoff,Monica M. Farley,Susan Petit,Allen S. Craig,William Schaffner,Ken Gershman,Lee H. Harrison,Ruth Lynfield,Janet C. Mohle‐Boetani,Shelley M. Zansky,Bernadette Albanese,Karen Stefonek,Elizabeth R. Zell,Delois Jackson,Terry A. Thompson,Stephanie J. Schrag	347
2	Risk Factors for Meningococcal Disease in Students in Grades 9–12 2008 ·The Pediatric Infectious Disease Journal ·Lee H. Harrison,(unknown),Kathleen A. Shutt,Nancy E. Messonnier,Mary M. O’Leary,Karen Stefonek,(unknown),Ruth Lynfield,Nancy L. Barrett,Kathryn E. Arnold,Timothy F. Jones,(unknown)	28
3	Multistate Shigellosis Outbreak and Commercially Prepared Food, United States 2004 ·Emerging infectious diseases ·Akiko Kimura,Kammy R. Johnson,Mary S. Palumbo,(unknown),(unknown),Roshan Reporter,Marcia Goldoft,Karen Stefonek,Jeff Farrar,Thomas J. Van Gilder,Duc J. Vugia	29
4	Prenatal Screening for Infectious Diseases and Opportunities for Prevention 2003 ·Obstetrics and Gynecology ·Stephanie J. Schrag,Kathryn E. Arnold,Janet C. Mohle‐Boetani,Ruth Lynfield,Elizabeth R. Zell,Karen Stefonek,Heather Noga,Allen S. Craig,Laurie Thomson Sanza,Glenda Smith,Anne Schuchat	21
5	A Population-Based Comparison of Strategies to Prevent Early-Onset Group B Streptococcal Disease in Neonates 2003 ·Obstetrical & Gynecological Survey ·Stephanie J. Schrag,Elizabeth R. Zell,Ruth Lynfield,Aaron Roome,Kathryn E. Arnold,Allen S. Craig,Lee H. Harrison,Arthur Reingold,Karen Stefonek,Glenda Smith,(unknown),Anne Schuchat	46
6	Risk for Severe Group A Streptococcal Disease among Patients’ Household Contacts 2003 ·Emerging infectious diseases ·Katherine A. Robinson,Gretchen Rothrock,Quyen Phan,(unknown),Karen Stefonek,Chris Van Beneden,Orin S. Levine,(unknown)	43
7	A Population-Based Comparison of Strategies to Prevent Early-Onset Group B Streptococcal Disease in Neonates 2002 ·New England Journal of Medicine ·Stephanie J. Schrag,Elizabeth R. Zell,Ruth Lynfield,Aaron Roome,Kathryn E. Arnold,Allen S. Craig,Lee H. Harrison,Arthur Reingold,Karen Stefonek,Glenda Smith,(unknown),Anne Schuchat	420
8	Active Bacterial Core Surveillance of the Emerging Infections Program Network 2001 ·SHILAP Revista de lepidopterología ·Anne Schuchat,(unknown),Elizabeth R. Zell,Monica M. Farley,Arthur Reingold,Lee H. Harrison,Lewis B. Lefkowitz,Richard Danila,Karen Stefonek,Nancy Barrett,Dale L. Morse,Robert W. Pinner	12
9	Group A streptococcal puerperal sepsis preceded by positive surveillance cultures1 , 1 2001 ·Obstetrics and Gynecology* ·Karen Stefonek	19
10	Active Bacterial Core Surveillance of the Emerging Infections Program Networkbreakdown → 2001 ·Emerging infectious diseases ·Anne Schuchat,(unknown),Elizabeth R. Zell,Monica M. Farley,Arthur Reingold,Lee H. Harrison,Lewis B. Lefkowitz,Richard Danila,Karen Stefonek,Nancy Barrett,Dale L. Morse,Robert W. Pinner,(unknown)	501
11	Group A Streptococcal Puerperal Sepsis Preceded by Positive Surveillance Cultures 2001 ·Obstetrics and Gynecology ·Karen Stefonek,Linda L. Maerz,(unknown),Richard E. Besser,Paul R. Cieslak	8
12	Mortality from invasive pneumococcal pneumonia in the era of antibiotic resistance, 1995-1997 2000 ·American Journal of Public Health ·Daniel R. Feikin,Anne Schuchat,MARGARETTE S. KOLCZAK,Nancy L. Barrett,Lee H. Harrison,Lewis B. Lefkowitz,Allison McGeer,Monica M. Farley,Duc J. Vugia,Catherine Lexau,Karen Stefonek,Jan E. Patterson,J H Jorgensen	444
13	Tracking Drug-Resistant Streptococcus pneumoniae in Oregon: An Alternative Surveillance Method 1999 ·Emerging infectious diseases ·(unknown),Katrina Hedberg,Paul R. Cieslak,Maureen Cassidy,Karen Stefonek,David W. Fleming	23

About Karen Stefonek

Karen Stefonek is a scholar working on Applied Microbiology and Biotechnology, Microbiology and Public Health, Environmental and Occupational Health, having authored 13 papers that have together received 1.9k indexed citations. Recurring topics across this work include Streptococcal Infections and Treatments (7 papers), Pneumonia and Respiratory Infections (6 papers) and Neonatal and Maternal Infections (6 papers). The work is most often cited by research in Microbiology (349 citations), Applied Microbiology and Biotechnology (82 citations) and Epidemiology (1.3k citations). Karen Stefonek has collaborated with scholars based in United States. Frequent co-authors include Lee H. Harrison, Anne Schuchat, Elizabeth R. Zell, Monica M. Farley, Arthur Reingold, Lewis B. Lefkowitz, Ruth Lynfield, Stephanie J. Schrag, Allen S. Craig and Kathryn E. Arnold. Their work appears in journals such as New England Journal of Medicine, SHILAP Revista de lepidopterología and Clinical Infectious Diseases.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact