Clark C. Freifeld

3.4k total citations · 1 hit paper
19 papers, 2.2k citations indexed

About

Clark C. Freifeld is a scholar working on Epidemiology, Public Health, Environmental and Occupational Health and Toxicology. According to data from OpenAlex, Clark C. Freifeld has authored 19 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Epidemiology, 6 papers in Public Health, Environmental and Occupational Health and 5 papers in Toxicology. Recurrent topics in Clark C. Freifeld's work include Data-Driven Disease Surveillance (13 papers), Influenza Virus Research Studies (5 papers) and COVID-19 epidemiological studies (5 papers). Clark C. Freifeld is often cited by papers focused on Data-Driven Disease Surveillance (13 papers), Influenza Virus Research Studies (5 papers) and COVID-19 epidemiological studies (5 papers). Clark C. Freifeld collaborates with scholars based in United States, Canada and United Kingdom. Clark C. Freifeld's co-authors include John S. Brownstein, Lawrence C. Madoff, Ben Y. Reis, Kenneth D. Mandl, Sumiko R. Mekaru, Rumi Chunara, Emily H. Chan, Nabarun Dasgupta, Taha Kass‐Hout and Ross W. Filice and has published in prestigious journals such as New England Journal of Medicine, Proceedings of the National Academy of Sciences and PLoS ONE.

In The Last Decade

Clark C. Freifeld

19 papers receiving 2.1k 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.

Digital Disease Detection — Harnessing the Web for Public Health Surveillance

2009 511 citations John S. Brownstein, Clark C. Freifeld et al. New England Journal of Medicine profile →

Peers

Countries citing papers authored by Clark C. Freifeld

Since Specialization

Citations

This map shows the geographic impact of Clark C. Freifeld'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 Clark C. Freifeld with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Clark C. Freifeld more than expected).

Fields of papers citing papers by Clark C. Freifeld

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Clark C. Freifeld. 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 Clark C. Freifeld. The network helps show where Clark C. Freifeld may publish in the future.

Co-authorship network of co-authors of Clark C. Freifeld

This figure shows the co-authorship network connecting the top 25 collaborators of Clark C. Freifeld. A scholar is included among the top collaborators of Clark C. Freifeld 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 Clark C. Freifeld. Clark C. Freifeld is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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19 of 19 papers shown

#	Work	Indexed citations
1	Social Media Impact of the Food and Drug Administration's Drug Safety Communication Messaging About Zolpidem: Mixed-Methods Analysis 2018 ·JMIR Public Health and Surveillance ·Michael S. Sinha, Clark C. Freifeld, John S. Brownstein, Macarius Donneyong, (unknown), (unknown), Esther H. Zhou, Gerald J. Dal Pan, Ajinkya Pawar, Thomas J. Hwang, Jerry Avorn, Aaron S. Kesselheim	20
2	Evaluation of Facebook and Twitter Monitoring to Detect Safety Signals for Medical Products: An Analysis of Recent FDA Safety Alerts 2017 ·Drug Safety ·Carrie E. Pierce, (unknown), Carol Pamer, (unknown), Harold Rodriguez, Hoa Le, Clark C. Freifeld, John S. Brownstein, Mark Walderhaug, I. Ralph Edwards, Nabarun Dasgupta	85
3	Social Media Listening for Routine Post-Marketing Safety Surveillance 2016 ·Drug Safety ·Gregory Powell, Harry Seifert, Tjark Reblin, (unknown), (unknown), J. Alan Menius, Jeffery L. Painter, (unknown), Carrie E. Pierce, Harold Rodriguez, John S. Brownstein, Clark C. Freifeld, (unknown), Nabarun Dasgupta	66
4	Increasing Patient Engagement in Pharmacovigilance Through Online Community Outreach and Mobile Reporting Applications: An Analysis of Adverse Event Reporting for the Essure Device in the US 2015 ·Pharmaceutical Medicine ·(unknown), (unknown), (unknown), Clark C. Freifeld, (unknown), Carrie E. Pierce, Harold Rodriguez, John S. Brownstein, Robert Furberg, Nabarun Dasgupta	45
5	Surveillance for Neisseria meningitidis Disease Activity and Transmission Using Information Technology 2015 ·PLoS ONE ·Sohail Ahmed, Ernesto Oviedo‐Orta, Sumiko R. Mekaru, Clark C. Freifeld, Gervais Tougas, John S. Brownstein	4
6	Digital Drug Safety Surveillance: Monitoring Pharmaceutical Products in Twitter 2014 ·Drug Safety ·Clark C. Freifeld, John S. Brownstein, (unknown), (unknown), Ross W. Filice, Taha Kass‐Hout, Nabarun Dasgupta	196
7	A Case Study of the New York City 2012-2013 Influenza Season With Daily Geocoded Twitter Data From Temporal and Spatiotemporal Perspectives 2014 ·Journal of Medical Internet Research ·(unknown), Qingyu Yuan, Clark C. Freifeld, Mauricio Santillana, (unknown), Rumi Chunara, John S. Brownstein	116
8	Crowdsourcing Black Market Prices For Prescription Opioids 2013 ·Journal of Medical Internet Research ·Nabarun Dasgupta, Clark C. Freifeld, John S. Brownstein, (unknown), Hilary L. Surratt, (unknown), Jody L. Green, Eric J. Lavonas, Richard C. Dart	65
9	Measuring vaccine confidence: analysis of data obtained by a media surveillance system used to analyse public concerns about vaccines 2013 ·The Lancet Infectious Diseases ·Heidi J. Larson, D. M. Smith, Pauline Paterson, Melissa Cumming, Elisabeth Eckersberger, Clark C. Freifeld, Isaac Ghinai, Caitlin Jarrett, (unknown), John S. Brownstein, Lawrence C. Madoff	157
10	Influenza A (H7N9) and the Importance of Digital Epidemiology 2013 ·New England Journal of Medicine ·Marcel Salathé, Clark C. Freifeld, Sumiko R. Mekaru, (unknown), John S. Brownstein	118
11	New technologies for reporting real-time emergent infections 2012 ·Parasitology ·Rumi Chunara, Clark C. Freifeld, John S. Brownstein	34
12	Online reporting for malaria surveillance using micro-monetary incentives, in urban India 2010-2011 2012 ·Malaria Journal ·Rumi Chunara, (unknown), (unknown), Sumiko R. Mekaru, Emily H. Chan, Clark C. Freifeld, John S. Brownstein	40
13	Participatory Epidemiology: Use of Mobile Phones for Community-Based Health Reporting 2010 ·PLoS Medicine ·Clark C. Freifeld, Rumi Chunara, Sumiko R. Mekaru, Emily H. Chan, Taha Kass‐Hout, (unknown), John S. Brownstein	170
14	Global capacity for emerging infectious disease detection 2010 ·Proceedings of the National Academy of Sciences ·Emily H. Chan, Timothy F. Brewer, Lawrence C. Madoff, Marjorie Pollack, (unknown), Mikaela Keller, Clark C. Freifeld, (unknown), Abla Mawudeku, John S. Brownstein	166
15	Information Technology and Global Surveillance of Cases of 2009 H1N1 Influenza 2010 ·New England Journal of Medicine ·John S. Brownstein, Clark C. Freifeld, Emily H. Chan, Mikaela Keller, (unknown), Sumiko R. Mekaru, David L. Buckeridge	76
16	Digital Disease Detection — Harnessing the Web for Public Health Surveillance breakdown → 2009 ·New England Journal of Medicine ·John S. Brownstein, Clark C. Freifeld, Lawrence C. Madoff	511
17	Evaluation of Internet-Based Informal Surveillance for Global Infectious Disease Intelligence 2008 ·International Journal of Infectious Diseases ·John S. Brownstein, Clark C. Freifeld	4
18	Surveillance Sans Frontières: Internet-Based Emerging Infectious Disease Intelligence and the HealthMap Project 2008 ·PLoS Medicine ·John S. Brownstein, Clark C. Freifeld, Ben Y. Reis, Kenneth D. Mandl	271
19	HealthMap: the development of automated real-time internet surveillance for epidemic intelligence 2007 ·Weekly releases (1997–2007) ·John S. Brownstein, Clark C. Freifeld	74

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.

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