John Frean

3.0k citations

107 papers · 1.9k indexed · h-index 25

Impact in

Parasitology top 1%
- Vector-borne infectious diseases
- Parasites and Host Interactions
- Parasitic Infections and Diagnostics
Infectious Diseases top 2%
- Viral Infections and Vectors

Papers in ⓘ

Parasitology 37
- Vector-borne infectious diseases 12
- Parasites and Host Interactions 8
Infectious Diseases 47
- Viral Infections and Vectors 22

Co-authors: Lucille Blumberg (21 shared papers)Leigh Dini (12 shared papers)Lorraine Arntzen (8 shared papers)H. J. Koornhof (1 shared paper)Raymond A. Smego (1 shared paper)Miguel Luengo-Oroz (1 shared paper)H. H. Crewe-Brown (4 shared papers)Jennifer Rossouw (17 shared papers)
Journals: Transactions of the Royal Society of Tropical Medicine and Hygiene (9 papers)Malaria Journal (9 papers)Onderstepoort Journal of Veterinary Research (7 papers)Journal of Clinical Microbiology (6 papers)Tropical Medicine and Infectious Disease (5 papers)
Partner nations: South Africa United States United Kingdom

In The Last Decade

John Frean

105 papers receiving 1.9k citations

Peers

Countries citing papers authored by John Frean

Since Specialization

Citations

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

Fields of papers citing papers by John Frean

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Frean. 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 Frean. The network helps show where John Frean may publish in the future.

Co-authors

The 25 scholars most cited alongside John Frean, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with John Frean Line = papers co-authored together John Frean links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 107 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Increased Prevalence of Severe Malaria in HIV-Infected Adults in South Africa Clinical Infectious Diseases ·Cheryl Cohen, Alan Karstaedt, John Frean, Juno Thomas, Nelesh P. Govender, Elizabeth Prentice, Leigh Dini, Jeffrey E. Galpin, H. H. Crewe-Brown	2005	141
2	Yersiniosis I: Microbiological and Clinicoepidemiological Aspects of Plague and Non-Plague Yersinia Infections European Journal of Clinical Microbiology & Infectious Diseases ·Raymond A. Smego, John Frean, H. J. Koornhof	1999	101
3	Crowdsourcing Malaria Parasite Quantification: An Online Game for Analyzing Images of Infected Thick Blood Smears Journal of Medical Internet Research ·Miguel Luengo-Oroz, Asier Arranz, John Frean	2012	80
4	Understanding and managing sanitary risks due to rodent zoonoses in an African city: beyond the Boston Model Integrative Zoology ·Peter J. Taylor, Lorraine Arntzen, Mel HAYTER, Malcolm Iles, John Frean, Steven R. Belmain	2008	78
5	External quality assessment of national public health laboratories in Africa, 2002–2009 Bulletin of the World Health Organization ·John Frean, Olga Perovic, Vivian Fensham, Kerrigan McCarthy, Anne von Gottberg, Linda de Gouveia, Bhavani Poonsamy, Leigh Dini, Jennifer Rossouw, Karen H. Keddy, Wondimagegnehu Alemu, Ali Ahmed Yahaya, Antoine Pierson, Virginie Dolmazon, Sébastien Cognat, Jean Bosco Ndihokubwayo	2012	57
6	Development of standardized laboratory methods and quality processes for a phase III study of the RTS, S/AS01 candidate malaria vaccine Malaria Journal ·Christine Swysen, Johan Vekemans, Myriam Bruls, Sunny Oyakhirome, Chris Drakeley, Peter G. Kremsner, Brian Greenwood, Opokua Ofori‐Anyinam, Brenda Okech, Tonya Villafana, Terrell Carter, Barbara Savarese, Adriano Dusé, Andrea Reijman, Charlotte Ingram, John Frean, Bernhards Ogutu	2011	51
7	First insights into species and genotypes of Echinococcus in South Africa Veterinary Parasitology ·Benjamin Mogoye, Colin Menezes, Michelle Wong, Sarah Stacey, Dirk von Delft, Kerstin Wahlers, Marion Wassermann, Thomas Romig, Peter Kern, Martin P. Grobusch, John Frean	2013	47
8	Reviewing South Africa’s malaria elimination strategy (2012–2018): progress, challenges and priorities Malaria Journal ·Jaishree Raman, Natashia Morris, John Frean, Basil D. Brooke, Lucille Blumberg, Philip Kruger, Aaron Mabusa, Eric Raswiswi, B Shandukani, Eunice Misani, Mary-Anne Groepe, Devanand Moonasar	2016	46
9	Prevalence of Selected Zoonotic Diseases and Risk Factors at a Human-Wildlife-Livestock Interface in Mpumalanga Province, South Africa Vector-Borne and Zoonotic Diseases ·Gregory Simpson, Vanessa Quan, John Frean, Darryn L. Knobel, Jennifer Rossouw, Jacqueline Weyer, Tanguy Marcotty, Jacques Godfroid, Lucille Blumberg	2018	43
10	Human Blastomycosis in South Africa Caused byBlastomyces percursusandBlastomyces emzantsisp. nov., 1967 to 2014 Journal of Clinical Microbiology ·Tsidiso G. Maphanga, Monica Birkhead, José F. Muñoz, Mushal Allam, Thokozile G. Zulu, Christina A. Cuomo, Ilan S. Schwartz, Arshad Ismail, Serisha D. Naicker, Ruth Mpembe, Craig Corcoran, Sybren de Hoog, Chris Kenyon, Andrew M. Borman, John Frean, Nelesh P. Govender	2020	42
11	Rapid detection of pfmdr1 mutations in chloroquine-resistant Plasmodium falciparum malaria by polymerase chain reaction analysis of blood spots Transactions of the Royal Society of Tropical Medicine and Hygiene ·John Frean, F.M. Awad El Kariem, D. C. Warhurst, Michael A. Miles	1992	40
12	An exploratory study of factors that affect the performance and usage of rapid diagnostic tests for malaria in the Limpopo Province, South Africa Malaria Journal ·Devanand Moonasar, Ameena Goga, John Frean, Philip Kruger, Daniel Chandramohan	2007	40
13	Reliable enumeration of malaria parasites in thick blood films using digital image analysis Malaria Journal ·John Frean	2009	39
14	An outbreak of hepatitis E in Northern Namibia, 1983. American Journal of Tropical Medicine and Hygiene ·M Isaäcson, John Frean, Jia‐Qiang He, J Seriwatana, Bruce L. Innis	2000	38
15	Where Have All the Diagnostic Morphological Parasitologists Gone? Journal of Clinical Microbiology ·Richard S. Bradbury, Sarah G. H. Sapp, Idzi Potters, Blaine A. Mathison, John Frean, Abhishek Mewara, Harsha Sheorey, Francesca Tamarozzi, Marc Roger Couturier, Peter L. Chiodini, Bobbi S. Pritt	2022	37
16	Anaplasma phagocytophilum and Other Anaplasma spp. in Various Hosts in the Mnisi Community, Mpumalanga Province, South Africa Microorganisms ·Agatha O. Kolo, Nicola E. Collins, Kelly A. Brayton, Mamohale Chaisi, Lucille Blumberg, John Frean, Cory A. Gall, Jeanette Wentzel, Samantha Kelly Wills-Berriman, Liesl De Boni, Jacqueline Weyer, Jennifer Rossouw, Marinda C. Oosthuizen	2020	36
17	CASE REPORT: GNATHOSTOMIASIS IN TWO TRAVELERS TO ZAMBIA American Journal of Tropical Medicine and Hygiene ·DeVon C. Hale, Lucille Blumberg, John Frean	2003	34
18	Genetic Characterization of Cryptosporidium spp. in Diarrhoeic Children from Four Provinces in South Africa Zoonoses and Public Health ·Nada Abu Samra, Peter N. Thompson, Ferrán Jori, John Frean, Bhavani Poonsamy, Desiree du Plessis, Benjamin Mogoye, Lihua Xiao	2012	31
19	In vitro activities of 14 antibiotics against 100 human isolates of Yersinia pestis from a southern African plague focus Antimicrobial Agents and Chemotherapy ·John Frean, Lorraine Arntzen, Thora Capper, A. Bryskier, Keith P. Klugman	1996	31
20	Unusual Case of Acanthamoeba polyphaga and Pseudomonas aeruginosa Keratitis in a Contact Lens Wearer from Gauteng, South Africa Journal of Clinical Microbiology ·Leigh Dini, Chrissanthie Cockinos, John Frean, Ingrid A. Niszl, Miles B. Markus	2000	30

About John Frean

John Frean is a scholar working on Parasitology, Infectious Diseases, Virology, Public Health, Environmental and Occupational Health and Small Animals, having authored 107 papers that have together received 1.9k indexed citations. Recurring topics across this work include Malaria Research and Control (28 papers), Viral Infections and Vectors (22 papers), Mosquito-borne diseases and control (20 papers), Vector-borne infectious diseases (12 papers), Parasites and Host Interactions (8 papers), Vector-Borne Animal Diseases (8 papers), Pneumocystis jirovecii pneumonia detection and treatment (7 papers) and Parasite Biology and Host Interactions (6 papers). The work is most often cited by research in Parasitology (523 citations), Infectious Diseases (637 citations), Public Health, Environmental and Occupational Health (765 citations), Endocrinology (88 citations) and Virology (79 citations). John Frean has collaborated with scholars based in South Africa, United States and United Kingdom. Frequent co-authors include Lucille Blumberg, Leigh Dini, Lorraine Arntzen, H. J. Koornhof, Raymond A. Smego, Miguel Luengo-Oroz, H. H. Crewe-Brown, Jennifer Rossouw, Alan Karstaedt and Nelesh P. Govender. Their work appears in journals such as Transactions of the Royal Society of Tropical Medicine and Hygiene, Malaria Journal, Onderstepoort Journal of Veterinary Research, Journal of Clinical Microbiology and Tropical Medicine and Infectious Disease.

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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