F A Sirgel

2.6k total citations
19 papers, 849 citations indexed

About

F A Sirgel is a scholar working on Infectious Diseases, Epidemiology and Surgery. According to data from OpenAlex, F A Sirgel has authored 19 papers receiving a total of 849 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Infectious Diseases, 15 papers in Epidemiology and 5 papers in Surgery. Recurrent topics in F A Sirgel's work include Tuberculosis Research and Epidemiology (16 papers), Mycobacterium research and diagnosis (11 papers) and Pneumonia and Respiratory Infections (5 papers). F A Sirgel is often cited by papers focused on Tuberculosis Research and Epidemiology (16 papers), Mycobacterium research and diagnosis (11 papers) and Pneumonia and Respiratory Infections (5 papers). F A Sirgel collaborates with scholars based in South Africa, United Kingdom and United States. F A Sirgel's co-authors include Peter R. Donald, Paul D. van Helden, D. P. Parkin, B. W. Van de Wal, Roxana Rustomjee, D A Mitchison, Amour Venter, D.A. Mitchison, Thomas P. Kanyok and J. S. Maritz and has published in prestigious journals such as PLoS ONE, American Journal of Respiratory and Critical Care Medicine and Clinical Infectious Diseases.

In The Last Decade

F A Sirgel

18 papers receiving 811 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
F A Sirgel South Africa	14	725	591	255	181	121	19	849
Kim Narunsky South Africa	10	640 0.9×	423 0.7×	199 0.8×	180 1.0×	116 1.0×	16	751
Kristian Ängeby Sweden	17	847 1.2×	781 1.3×	229 0.9×	161 0.9×	93 0.8×	30	972
R. F. Patientia South Africa	5	596 0.8×	437 0.7×	169 0.7×	196 1.1×	89 0.7×	5	707
Tetsuyuki Yoshimatsu Japan	11	1.1k 1.5×	850 1.4×	337 1.3×	412 2.3×	108 0.9×	23	1.3k
Baohong Ji France	18	846 1.2×	812 1.4×	330 1.3×	159 0.9×	94 0.8×	31	1.1k
Nosipho Ngubane United Kingdom	5	856 1.2×	575 1.0×	279 1.1×	180 1.0×	64 0.5×	5	985
Erica Egizi United States	6	632 0.9×	411 0.7×	192 0.8×	178 1.0×	64 0.5×	6	750
Divan A. Burger South Africa	10	533 0.7×	367 0.6×	133 0.5×	162 0.9×	91 0.8×	22	756
Ian M. Rosenthal United States	13	1.1k 1.5×	838 1.4×	336 1.3×	417 2.3×	169 1.4×	18	1.3k
Genevieve H. Wills United Kingdom	6	597 0.8×	402 0.7×	191 0.7×	151 0.8×	50 0.4×	8	742

Countries citing papers authored by F A Sirgel

Since Specialization

Citations

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

Fields of papers citing papers by F A Sirgel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by F A Sirgel. 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 F A Sirgel. The network helps show where F A Sirgel may publish in the future.

Co-authorship network of co-authors of F A Sirgel

This figure shows the co-authorship network connecting the top 25 collaborators of F A Sirgel. A scholar is included among the top collaborators of F A Sirgel 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 F A Sirgel. F A Sirgel 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

Ismail, Nabila, F A Sirgel, Claudia Spies, et al.. (2025). Unpacking bedaquiline heteroresistance: the importance of intermediate profiles for phenotypic drug susceptibility testing. Antimicrobial Agents and Chemotherapy. 69(8). e0035625–e0035625.

Pietersen, Elize, Jonny Peter, Elizabeth M. Streicher, et al.. (2015). High Frequency of Resistance, Lack of Clinical Benefit, and Poor Outcomes in Capreomycin Treated South African Patients with Extensively Drug-Resistant Tuberculosis. PLoS ONE. 10(4). e0123655–e0123655. 17 indexed citations

Whitfield, Michael G., Robin M. Warren, Elizabeth M. Streicher, et al.. (2015). Mycobacterium tuberculosis pncA Polymorphisms That Do Not Confer Pyrazinamide Resistance at a Breakpoint Concentration of 100 Micrograms per Milliliter in MGIT. Journal of Clinical Microbiology. 53(11). 3633–3635. 26 indexed citations

Ritter, C., Katja Lucke, F A Sirgel, et al.. (2014). Evaluation of the AID TB Resistance Line Probe Assay for Rapid Detection of Genetic Alterations Associated with Drug Resistance in Mycobacterium tuberculosis Strains. Journal of Clinical Microbiology. 52(3). 940–946. 29 indexed citations

Rustomjee, Roxana, Christian Lienhardt, Thomas P. Kanyok, et al.. (2008). A Phase II study of the sterilising activities of ofloxacin, gatifloxacin and moxifloxacin in pulmonary tuberculosis.. PubMed. 12(2). 128–38. 230 indexed citations

Sirgel, F A, P. Bernard Fourie, Peter R. Donald, et al.. (2005). The Early Bactericidal Activities of Rifampin and Rifapentine in Pulmonary Tuberculosis. American Journal of Respiratory and Critical Care Medicine. 172(1). 128–135. 83 indexed citations

Sirgel, F A, et al.. (2005). Monitoring the ingestion of anti-tuberculosis drugs by simple non-invasive methods. International Journal of Pharmaceutics. 307(2). 182–187. 4 indexed citations

Donald, Peter R., F A Sirgel, Amour Venter, et al.. (2004). The Influence of Human N-Acetyltransferase Genotype on the Early Bactericidal Activity of Isoniazid. Clinical Infectious Diseases. 39(10). 1425–1430. 69 indexed citations

Donald, Peter R., F A Sirgel, Amour Venter, et al.. (2003). Early bactericidal activity of antituberculosis agents. Expert Review of Anti-infective Therapy. 1(1). 141–155. 51 indexed citations

10.

Sirgel, F A. (2001). Sources of variation in studies of the early bactericidal activity of antituberculosis drugs. Journal of Antimicrobial Chemotherapy. 47(2). 177–182. 25 indexed citations

11.

Sirgel, F A, P. R. Donald, Joseph Odhiambo, et al.. (2000). A multicentre study of the early bactericidal activity of anti-tuberculosis drugs. Journal of Antimicrobial Chemotherapy. 45(6). 859–870. 89 indexed citations

12.

Schaaf, H. Simon, et al.. (2000). Primary drug-resistant tuberculosis in children.. PubMed. 4(12). 1149–55. 53 indexed citations

13.

Donald, Peter R., F A Sirgel, Thomas P. Kanyok, et al.. (2000). Early Bactericidal Activity of Paromomycin (Aminosidine) in Patients with Smear-Positive Pulmonary Tuberculosis. Antimicrobial Agents and Chemotherapy. 44(12). 3285–3287. 31 indexed citations

14.

Victor, T. C., Robin M. Warren, A. Jordaan, et al.. (1997). Genome and MIC stability in Mycobacterium tuberculosis and indications for continuation of use of isoniazid in multidrug-resistant tuberculosis. Journal of Medical Microbiology. 46(10). 847–857. 36 indexed citations

15.

Pretorius, G S, F A Sirgel, H. Simon Schaaf, Paul D. van Helden, & T. C. Victor. (1996). Rifampicin resistance in Mycobacterium tuberculosis--rapid detection and implications in chemotherapy.. PubMed. 86(1). 50–5. 10 indexed citations

16.

Sirgel, F A, et al.. (1996). Early bactericidal activity of ethambutol, pyrazinamide and the fixed combination of isoniazid, rifampicin and pyrazinamide (Rifater) in patients with pulmonary tuberculosis.. PubMed. 86(2). 155–8. 43 indexed citations

17.

Sirgel, F A, B. W. Van de Wal, D. P. Parkin, et al.. (1995). 073-PA11 Early bactericidal activity of ciprofloxacin in patients with pulmonary tuberculosis compared to that of isoniazid. Tubercle and Lung Disease. 76. 86–86. 2 indexed citations

18.

Pretorius, G S, Paul D. van Helden, F A Sirgel, K. D. Eisenach, & T. C. Victor. (1995). Mutations in katG gene sequences in isoniazid-resistant clinical isolates of Mycobacterium tuberculosis are rare. Antimicrobial Agents and Chemotherapy. 39(10). 2276–2281. 47 indexed citations

19.

Sirgel, F A, et al.. (1994). Early bactericidal activity as a method of assessment of drugs for the treatment of tuberculosis. Journal of Antimicrobial Chemotherapy. 34(1). 182–183. 4 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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