Norbert Ndjeka

3.4k total citations
55 papers, 1.3k citations indexed

About

Norbert Ndjeka is a scholar working on Infectious Diseases, Epidemiology and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Norbert Ndjeka has authored 55 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 47 papers in Infectious Diseases, 35 papers in Epidemiology and 8 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Norbert Ndjeka's work include Tuberculosis Research and Epidemiology (42 papers), Pneumonia and Respiratory Infections (24 papers) and Pneumocystis jirovecii pneumonia detection and treatment (19 papers). Norbert Ndjeka is often cited by papers focused on Tuberculosis Research and Epidemiology (42 papers), Pneumonia and Respiratory Infections (24 papers) and Pneumocystis jirovecii pneumonia detection and treatment (19 papers). Norbert Ndjeka collaborates with scholars based in South Africa, United States and United Kingdom. Norbert Ndjeka's co-authors include Francesca Conradie, Jennifer Hughes, Kathryn Schnippel, Gary Maartens, Graeme Meintjes, Nazir Ismail, Helen Cox, Xavier Padanilam, Gavin Churchyard and Hannetjie Ferreira and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Clinical Infectious Diseases.

In The Last Decade

Norbert Ndjeka

53 papers receiving 1.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Norbert Ndjeka South Africa 19 1.1k 815 320 124 100 55 1.3k
Kidola Jeremiah Tanzania 20 831 0.7× 600 0.7× 301 0.9× 34 0.3× 112 1.1× 58 1.2k
Charlotte Kvasnovsky United States 16 520 0.5× 381 0.5× 330 1.0× 38 0.3× 35 0.3× 38 957
Martin van den Boom Italy 12 568 0.5× 279 0.3× 182 0.6× 39 0.3× 36 0.4× 27 709
Eleanor S. Click United States 16 523 0.5× 368 0.5× 226 0.7× 13 0.1× 56 0.6× 44 910
Andrea Benedetti Canada 23 1.6k 1.4× 1.1k 1.3× 688 2.1× 53 0.4× 65 0.7× 49 1.8k
Nathaniel Smith United States 15 673 0.6× 299 0.4× 113 0.4× 57 0.5× 60 0.6× 41 1.3k
Antoine C. El Khoury United States 19 490 0.4× 404 0.5× 55 0.2× 117 0.9× 43 0.4× 46 1.2k
Brad Hutton United States 7 1.4k 1.3× 347 0.4× 697 2.2× 20 0.2× 26 0.3× 7 2.1k
Borisov Se Russia 16 545 0.5× 362 0.4× 175 0.5× 22 0.2× 41 0.4× 73 777
Valentina Baccolini Italy 20 288 0.3× 247 0.3× 64 0.2× 47 0.4× 45 0.5× 83 1.0k

Countries citing papers authored by Norbert Ndjeka

Since Specialization
Citations

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

Fields of papers citing papers by Norbert Ndjeka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Norbert Ndjeka

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

All Works

20 of 20 papers shown
1.
Menzies, Dick, Kiran Rade, Neeraj Kak, et al.. (2025). Global status of policies and practices for systematic TB screening in high-burden countries. PubMed. 2(12). 705–715.
2.
Ndjeka, Norbert, et al.. (2025). Impact of US funding cuts and stop work orders on TB services and research in South Africa. PubMed. 2(4). 241–243. 4 indexed citations
3.
Naidoo, Kogieleum, Rubeshan Perumal, Helen Cox, et al.. (2024). The epidemiology, transmission, diagnosis, and management of drug-resistant tuberculosis—lessons from the South African experience. The Lancet Infectious Diseases. 24(9). e559–e575. 9 indexed citations
4.
Budhathoki, Chakra, et al.. (2023). Successful Multidrug-Resistant Tuberculosis Treatment Without HIV Viral Suppression: A Missed Opportunity. JAIDS Journal of Acquired Immune Deficiency Syndromes. 94(3). 253–261. 1 indexed citations
5.
Scott, Lesley, Harry Moultrie, Karen R. Jacobson, et al.. (2023). Tuberculosis testing patterns in South Africa to identify groups that would benefit from increased investigation. Scientific Reports. 13(1). 20875–20875. 2 indexed citations
6.
Denkinger, Claudia M., Jennifer Furin, Petra Heitkamp, et al.. (2023). Diagnostics to support the scaling up of shorter, safer tuberculosis regimens. The Lancet Microbe. 4(10). e758–e760. 3 indexed citations
7.
Jassat, Waasila, Caroline Mudara, Richard Welch, et al.. (2022). A cohort study of post-COVID-19 condition across the Beta, Delta, and Omicron waves in South Africa: 6-month follow-up of hospitalized and nonhospitalized participants. International Journal of Infectious Diseases. 128. 102–111. 41 indexed citations
8.
Gomez, Gabriela B., Mariana Siapka, Francesca Conradie, et al.. (2021). Cost-effectiveness of bedaquiline, pretomanid and linezolid for treatment of extensively drug-resistant tuberculosis in South Africa, Georgia and the Philippines. BMJ Open. 11(12). e051521–e051521. 18 indexed citations
9.
Padayatchi, Nesri, Farzana Osman, Norbert Ndjeka, et al.. (2020). Treatment outcomes in patients with drug-resistant TB-HIV co-infection treated with bedaquiline and linezolid. The International Journal of Tuberculosis and Lung Disease. 24(10). 1024–1031. 24 indexed citations
10.
Erasmus, Linda, et al.. (2020). Pre-treatment loss to follow-up among children with multidrug-resistant tuberculosis in South Africa, 2008–2010. PLoS ONE. 15(4). e0230504–e0230504. 4 indexed citations
11.
Ndjeka, Norbert, Kathryn Schnippel, Iqbal Master, et al.. (2018). High treatment success rate for multidrug-resistant and extensively drug-resistant tuberculosis using a bedaquiline-containing treatment regimen. European Respiratory Journal. 52(6). 1801528–1801528. 80 indexed citations
12.
Farley, Jason E., Norbert Ndjeka, Ana M. Kelly, et al.. (2017). Evaluation of a nurse practitioner-physician task-sharing model for multidrug-resistant tuberculosis in South Africa. PLoS ONE. 12(8). e0182780–e0182780. 19 indexed citations
13.
Schnippel, Kathryn, Cynthia Firnhaber, Francesca Conradie, Norbert Ndjeka, & Edina Sinanovic. (2017). Incremental Cost Effectiveness of Bedaquiline for the Treatment of Rifampicin-Resistant Tuberculosis in South Africa: Model-Based Analysis. Applied Health Economics and Health Policy. 16(1). 43–54. 13 indexed citations
14.
Cox, Vivian, et al.. (2016). The experience of bedaquiline implementation at a decentralised clinic in South Africa. Public Health Action. 6(3). 190–192. 5 indexed citations
15.
Ndjeka, Norbert, Francesca Conradie, Kathryn Schnippel, et al.. (2015). Treatment of drug-resistant tuberculosis with bedaquiline in a high HIV prevalence setting: an interim cohort analysis. The International Journal of Tuberculosis and Lung Disease. 19(8). 979–985. 101 indexed citations
16.
17.
Sinanovic, Edina, Lebogang Ramma, Anna Vassall, et al.. (2015). Impact of reduced hospitalisation on the cost of treatment for drug-resistant tuberculosis in South Africa. The International Journal of Tuberculosis and Lung Disease. 19(2). 172–178. 39 indexed citations
18.
Walt, Martie van der, Sarah E. Smith, Sapna Bamrah Morris, et al.. (2015). Epidemiology of drug-resistant tuberculosis among children and adolescents in South Africa, 2005–2010. The International Journal of Tuberculosis and Lung Disease. 19(6). 663–669. 17 indexed citations
19.
Nwobegahay, Julius, et al.. (2011). Prevalence of drug-resistant mutations in newly diagnosed drug-naïve HIV-1-infected individuals in a treatment site in the Waterberg District, Limpopo province. South African Medical Journal. 101(5). 335–335. 7 indexed citations
20.
Ndjeka, Norbert & GA Ogunbanjo. (2003). Disease patterns in the medical wards of a rural South African hospital. SHILAP Revista de lepidopterología. 45(4). 2–2. 9 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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