John Njeru

797 total citations
17 papers, 451 citations indexed

About

John Njeru is a scholar working on Infectious Diseases, Food Science and Epidemiology. According to data from OpenAlex, John Njeru has authored 17 papers receiving a total of 451 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Infectious Diseases, 7 papers in Food Science and 5 papers in Epidemiology. Recurrent topics in John Njeru's work include Salmonella and Campylobacter epidemiology (4 papers), Burkholderia infections and melioidosis (4 papers) and Viral Infections and Vectors (4 papers). John Njeru is often cited by papers focused on Salmonella and Campylobacter epidemiology (4 papers), Burkholderia infections and melioidosis (4 papers) and Viral Infections and Vectors (4 papers). John Njeru collaborates with scholars based in Kenya, Germany and United Kingdom. John Njeru's co-authors include Heinrich Neubauer, Mathias W. Pletz, Regine Heller, K. Henning, Gamal Wareth, Falk Melzer, Hosny El‐Adawy, Samuel Kariuki, Eric M. Fèvre and Klaus Henning and has published in prestigious journals such as PLoS ONE, Emerging infectious diseases and BMC Public Health.

In The Last Decade

John Njeru

16 papers receiving 444 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
John Njeru Kenya 11 211 165 163 151 100 17 451
Salama A. Osman Egypt 12 179 0.8× 224 1.4× 152 0.9× 117 0.8× 65 0.7× 35 574
Colette Diguimbaye Switzerland 7 190 0.9× 173 1.0× 86 0.5× 158 1.0× 68 0.7× 8 427
Djamel Khelef Algeria 15 252 1.2× 88 0.5× 333 2.0× 139 0.9× 79 0.8× 68 704
Moses Kyule Germany 12 111 0.5× 239 1.4× 82 0.5× 149 1.0× 124 1.2× 16 687
Eleonora Scoccia Italy 15 106 0.5× 73 0.4× 120 0.7× 92 0.6× 129 1.3× 33 526
Roberto Condoleo Italy 12 92 0.4× 76 0.5× 94 0.6× 135 0.9× 65 0.7× 35 421
Tesfu Kassa Ethiopia 16 91 0.4× 98 0.6× 125 0.8× 279 1.8× 45 0.5× 42 682
Andrea Di Provvido Italy 13 168 0.8× 96 0.6× 95 0.6× 44 0.3× 107 1.1× 40 465
Erik Rattenborg Denmark 11 133 0.6× 80 0.5× 77 0.5× 269 1.8× 49 0.5× 21 472
Heinrich Neubauer Germany 13 243 1.2× 134 0.8× 166 1.0× 120 0.8× 88 0.9× 29 535

Countries citing papers authored by John Njeru

Since Specialization
Citations

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

Fields of papers citing papers by John Njeru

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Njeru

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

All Works

17 of 17 papers shown
1.
Kisiangani, Isaac, Ângela Jornada Ben, Elke Wynberg, et al.. (2025). Recovery and long-term health outcomes of SARS-CoV-2 infection in a prospective cohort in an urban setting, Kenya. Global Health Action. 18(1). 2500795–2500795.
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Njeru, John, et al.. (2023). Extended-spectrum β-lactamase- producing gram-negative bacterial infections in severely ill COVID-19 patients admitted in a national referral hospital, Kenya. Annals of Clinical Microbiology and Antimicrobials. 22(1). 91–91. 5 indexed citations
4.
Njeru, John, et al.. (2022). Multidrug resistant bacterial infections in severely ill COVID-19 patients admitted in a national referral and teaching hospital, Kenya. BMC Infectious Diseases. 22(1). 877–877. 13 indexed citations
5.
Njeru, John, Ulrich Steinhoff, Sally J. Cutler, et al.. (2022). Novel approaches for the serodiagnosis of louse-borne relapsing fever. Frontiers in Cellular and Infection Microbiology. 12. 983770–983770. 3 indexed citations
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Nyerere, Andrew, et al.. (2021). Prevalence and Risk Factors Associated with <i>Campylobacter</i> Infection in Diarrheal Patients in Busia County, Kenya. Advances in Microbiology. 11(11). 657–680. 2 indexed citations
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Njeru, John, Ahmed M. El‐Sayed, Amira A. Moawad, et al.. (2018). Q fever in Egypt: Epidemiological survey of Coxiella burnetii specific antibodies in cattle, buffaloes, sheep, goats and camels. PLoS ONE. 13(2). e0192188–e0192188. 82 indexed citations
10.
Jamil, Tariq, Falk Melzer, John Njeru, et al.. (2017). Brucella abortus: Current Research and Future Trends. Current Clinical Microbiology Reports. 4(1). 1–10. 15 indexed citations
11.
Njeru, John, Herbert Tomaso, Katja Mertens‐Scholz, et al.. (2017). Serological evidence of Francisella tularensis in febrile patients seeking treatment at remote hospitals, northeastern Kenya, 2014–2015. New Microbes and New Infections. 19. 62–66. 14 indexed citations
12.
Glanville, William A. de, Raquel Conde-Álvarez, Ignacio Moriyón, et al.. (2017). Poor performance of the rapid test for human brucellosis in health facilities in Kenya. PLoS neglected tropical diseases. 11(4). e0005508–e0005508. 40 indexed citations
13.
Njeru, John, K. Henning, Mathias W. Pletz, et al.. (2016). Febrile patients admitted to remote hospitals in Northeastern Kenya: seroprevalence, risk factors and a clinical prediction tool for Q-Fever. BMC Infectious Diseases. 16(1). 244–244. 29 indexed citations
14.
Njeru, John, K. Henning, Mathias W. Pletz, Regine Heller, & Heinrich Neubauer. (2016). Q fever is an old and neglected zoonotic disease in Kenya: a systematic review. BMC Public Health. 16(1). 297–297. 60 indexed citations
15.
Njeru, John, Gamal Wareth, Falk Melzer, et al.. (2016). Systematic review of brucellosis in Kenya: disease frequency in humans and animals and risk factors for human infection. BMC Public Health. 16(1). 853–853. 88 indexed citations
16.
Nguyen, Tuan Ngoc, Helmut Hotzel, John Njeru, et al.. (2016). Antimicrobial resistance of Campylobacter isolates from small scale and backyard chicken in Kenya. Gut Pathogens. 8(1). 39–39. 58 indexed citations
17.
Njeru, John, Falk Melzer, Gamal Wareth, et al.. (2016). Human Brucellosis in Febrile Patients Seeking Treatment at Remote Hospitals, Northeastern Kenya, 2014–2015. Emerging infectious diseases. 22(12). 2160–2164. 23 indexed citations

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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