John S. Spika
Impact in
- Endocrinology top 0.2%
- Escherichia coli research studies
- Microbiology top 0.5%
- Bacterial Infections and Vaccines
Papers in
- Epidemiology 31
- Pneumonia and Respiratory Infections 18
- Virology and Viral Diseases 7
- Influenza Virus Research Studies 6
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- Escherichia coli research studies 12
- Co-authors
- Richard R. Facklam (7 shared papers)Brian D. Plikaytis (2 shared papers)Margaret J. Oxtoby (1 shared paper)Roger P. Johnson (7 shared papers)Shane A. Renwick (7 shared papers)Robert Clarke (6 shared papers)Timothy D. Mastro (4 shared papers)H. Lior (6 shared papers)
- Journals
- The Journal of Infectious Diseases (14 papers)Clinical Infectious Diseases (4 papers)Journal of Clinical Microbiology (4 papers)Canadian Medical Association Journal (3 papers)Infection and Immunity (2 papers)
- Partner nations
- United StatesCanadaDenmark
In The Last Decade
John S. Spika
68 papers receiving 3.3k citations
Peers
Comparison fields: 5 of 124
- Endocrinology 1.1k
- Microbiology 508
- Infectious Diseases 1.1k
- Epidemiology 1.5k
- Molecular Medicine 194
Countries citing papers authored by John S. Spika
This map shows the geographic impact of John S. Spika'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 John S. Spika with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John S. Spika more than expected).
Fields of papers citing papers by John S. Spika
This network shows the impact of papers produced by John S. Spika. 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 John S. Spika. The network helps show where John S. Spika may publish in the future.
Co-authors
The 25 scholars most cited alongside John S. Spika, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 69 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | 1991 | 236 | |
| 2 | 1990 | 213 | |
| 3 | 1996 | 207 | |
| 4 | 2001 | 183 | |
| 5 | 1986 | 169 | |
| 6 | 1987 | 168 | |
| 7 | 2010 | 147 | |
| 8 | Salmonella typhimurium DT104: a virulent and drug-resistant pathogen. | 1998 | 131 |
| 9 | 2000 | 119 | |
| 10 | 1999 | 119 | |
| 11 | 1997 | 113 | |
| 12 | 1996 | 104 | |
| 13 | 1990 | 95 | |
| 14 | 1988 | 89 | |
| 15 | 1998 | 87 | |
| 16 | 1991 | 86 | |
| 17 | 1990 | 74 | |
| 18 | 1989 | 69 | |
| 19 | 1996 | 63 | |
| 20 | Association of shower use with Legionnaires' disease. Possible role of amoebae. | 1990 | 62 |
About John S. Spika
John S. Spika is a scholar working on Epidemiology, Endocrinology, Infectious Diseases, Immunology and Public Health, Environmental and Occupational Health, having authored 69 papers that have together received 3.5k indexed citations. Recurring topics across this work include Pneumonia and Respiratory Infections (18 papers), Escherichia coli research studies (12 papers), Vaccine Coverage and Hesitancy (8 papers), Clostridium difficile and Clostridium perfringens research (8 papers), Viral gastroenteritis research and epidemiology (8 papers), Virology and Viral Diseases (7 papers), Immunodeficiency and Autoimmune Disorders (6 papers) and Influenza Virus Research Studies (6 papers). The work is most often cited by research in Endocrinology (1.1k citations), Microbiology (508 citations), Infectious Diseases (1.1k citations), Epidemiology (1.5k citations) and Molecular Medicine (194 citations). John S. Spika has collaborated with scholars based in United States, Canada and Denmark. Frequent co-authors include Richard R. Facklam, Brian D. Plikaytis, Margaret J. Oxtoby, Roger P. Johnson, Shane A. Renwick, Robert Clarke, Timothy D. Mastro, H. Lior, Paul A. Blake and Kris Rahn. Their work appears in journals such as The Journal of Infectious Diseases, Clinical Infectious Diseases, Journal of Clinical Microbiology, Canadian Medical Association Journal and Infection and Immunity.
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.