Simon Thelwall

6.2k total citations · 2 hit papers
19 papers, 2.4k citations indexed

About

Simon Thelwall is a scholar working on Infectious Diseases, Epidemiology and Applied Microbiology and Biotechnology. According to data from OpenAlex, Simon Thelwall has authored 19 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Infectious Diseases, 4 papers in Epidemiology and 4 papers in Applied Microbiology and Biotechnology. Recurrent topics in Simon Thelwall's work include SARS-CoV-2 and COVID-19 Research (10 papers), COVID-19 Clinical Research Studies (9 papers) and SARS-CoV-2 detection and testing (8 papers). Simon Thelwall is often cited by papers focused on SARS-CoV-2 and COVID-19 Research (10 papers), COVID-19 Clinical Research Studies (9 papers) and SARS-CoV-2 detection and testing (8 papers). Simon Thelwall collaborates with scholars based in United Kingdom, Norway and Denmark. Simon Thelwall's co-authors include Gavin Dabrera, Jamie Lopez Bernal, Eileen Gallagher, Susan Hopkins, Richard Myers, Natalie Groves, Meera Chand, Nick Andrews, Charlotte Gower and Maria Zambon and has published in prestigious journals such as New England Journal of Medicine, Nature Communications and The Journal of Infectious Diseases.

In The Last Decade

Simon Thelwall

18 papers receiving 2.4k 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.

Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant

2021 1.7k citations Jamie Lopez Bernal, Nick Andrews et al. New England Journal of Medicine profile →
Hospital admission and emergency care attendance risk for SARS-CoV-2 delta (B.1.617.2) compared with alpha (B.1.1.7) variants of concern: a cohort study

2021 372 citations Katherine A. Twohig, Tommy Nyberg et al. Cronfa (Swansea University) profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Simon Thelwall United Kingdom	9	1.9k	608	581	247	174	19	2.4k
Natalie Groves United Kingdom	13	1.8k 0.9×	653 1.1×	574 1.0×	410 1.7×	133 0.8×	23	2.3k
Vennis Hong United States	18	1.6k 0.8×	559 0.9×	358 0.6×	126 0.5×	288 1.7×	54	2.2k
Gavin Dabrera United Kingdom	17	2.2k 1.2×	857 1.4×	741 1.3×	270 1.1×	227 1.3×	61	3.2k
Elise Tessier United Kingdom	15	2.4k 1.3×	1.2k 2.0×	829 1.4×	248 1.0×	222 1.3×	32	3.3k
Farid Khan United States	17	1.2k 0.7×	646 1.1×	557 1.0×	121 0.5×	107 0.6×	35	1.9k
Yaling Hu China	10	1.5k 0.8×	478 0.8×	163 0.3×	203 0.8×	158 0.9×	21	1.7k
Katherine R. W. Emary United Kingdom	11	1.1k 0.6×	457 0.8×	181 0.3×	129 0.5×	126 0.7×	22	1.7k
Shepherd Roee Singer Israel	12	988 0.5×	550 0.9×	343 0.6×	106 0.4×	79 0.5×	31	1.6k
Doron Netzer Israel	12	941 0.5×	263 0.4×	102 0.2×	202 0.8×	153 0.9×	37	1.5k
Gang Zeng China	11	1.1k 0.6×	380 0.6×	118 0.2×	121 0.5×	85 0.5×	19	1.3k

Countries citing papers authored by Simon Thelwall

Since Specialization

Citations

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

Fields of papers citing papers by Simon Thelwall

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Simon Thelwall

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

Blum, Maxim, Jeroen Geurtsen, Eva Herweijer, et al.. (2025). Epidemiology of invasive Escherichia coli disease in adults in England, 2013–2017. Epidemiology and Infection. 153. e4–e4. 1 indexed citations

Nsonwu, Olisaeloka, Simon Thelwall, Sarah Gerver, et al.. (2025). Incidence, case-fatality rates and risk factors of bloodstream infections caused by Escherichia coli, Klebsiella species and Pseudomonas aeruginosa, England, April 2017 to March 2022. Eurosurveillance. 30(17). 2 indexed citations

Twohig, Katherine A., Katie Harman, Asad Zaidi, et al.. (2023). Representativeness of whole-genome sequencing approaches in England: the importance for understanding inequalities associated with SARS-CoV-2 infection. Epidemiology and Infection. 151. e169–e169. 1 indexed citations

Harman, Katie, Sophie Nash, Harriet Webster, et al.. (2023). Comparison of the risk of hospitalisation among BA.1 and BA.2 COVID‐19 cases treated with sotrovimab in the community in England. Influenza and Other Respiratory Viruses. 17(5). e13150–e13150. 14 indexed citations

Sinnathamby, Mary, Asad Zaidi, Katherine A. Twohig, et al.. (2023). Descriptive epidemiology of SARS‐CoV‐2 Beta (B.1.351) variant cases in England, December 2020 to June 2022. Influenza and Other Respiratory Viruses. 17(11). e13204–e13204. 1 indexed citations

Nash, Sophie, Nurin Abdul Aziz, Russell Hope, et al.. (2023). Risk of severe outcomes among Omicron sub-lineages BA.4.6, BA.2.75, and BQ.1 compared to BA.5 in England. Epidemiology and Infection. 151. e189–e189. 1 indexed citations

Nyberg, Tommy, Peter Bager, Dritan Bejko, et al.. (2023). A Standardised Protocol for Assessment of Relative SARS-CoV-2 Variant Severity, with Application to Severity Risk for COVID-19 Cases Infected with Omicron BA.1 Compared to Delta Variants in six European Countries. SSRN Electronic Journal.

Nyberg, Tommy, Peter Bager, Dritan Bejko, et al.. (2023). A standardised protocol for relative SARS-CoV-2 variant severity assessment, applied to Omicron BA.1 and Delta in six European countries, October 2021 to February 2022. Eurosurveillance. 28(36). 3 indexed citations

Nyberg, Tommy, Katie Harman, Asad Zaidi, et al.. (2022). Hospitalization and Mortality Risk for COVID-19 Cases With SARS-CoV-2 AY.4.2 (VUI-21OCT-01) Compared to Non-AY.4.2 Delta Variant Sublineages. The Journal of Infectious Diseases. 226(5). 808–811. 6 indexed citations

10.

Webster, Harriet, Tommy Nyberg, Mary Sinnathamby, et al.. (2022). Hospitalisation and mortality risk of SARS-COV-2 variant omicron sub-lineage BA.2 compared to BA.1 in England. Nature Communications. 13(1). 6053–6053. 18 indexed citations

11.

Bhattacharya, Alex, Simon M. Collin, James Stimson, et al.. (2021). Healthcare-associated COVID-19 in England: A national data linkage study. Journal of Infection. 83(5). 565–572. 39 indexed citations

12.

Gerver, Sarah, Olisaeloka Nsonwu, Simon Thelwall, Colin Brown, & Russell Hope. (2021). Trends in rates of incidence, fatality and antimicrobial resistance among isolates of Pseudomonas spp. causing bloodstream infections in England between 2009 and 2018: results from a national voluntary surveillance scheme. Journal of Hospital Infection. 120. 73–80. 6 indexed citations

13.

Gerver, Sarah, Rebecca Guy, Kate Wilson, et al.. (2021). National surveillance of bacterial and fungal coinfection and secondary infection in COVID-19 patients in England: lessons from the first wave. Clinical Microbiology and Infection. 27(11). 1658–1665. 33 indexed citations

14.

Bernal, Jamie Lopez, Nick Andrews, Charlotte Gower, et al.. (2021). Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant. New England Journal of Medicine. 385(7). 585–594. 1738 indexed citations breakdown →

15.

Chudasama, Dimple, James Lewis, Isaac Florence, et al.. (2021). Epidemiology of COVID-19 in Prisons, England, 2020. Emerging infectious diseases. 27(8). 2183–2186. 7 indexed citations

16.

Twohig, Katherine A., Tommy Nyberg, Asad Zaidi, et al.. (2021). Hospital admission and emergency care attendance risk for SARS-CoV-2 delta (B.1.617.2) compared with alpha (B.1.1.7) variants of concern: a cohort study. Cronfa (Swansea University). 372 indexed citations breakdown →

17.

Johnson, Alan P., Berit Müller‐Pebody, Emma Budd, et al.. (2016). Improving feedback of surveillance data on antimicrobial consumption, resistance and stewardship in England: putting the data at your Fingertips. Journal of Antimicrobial Chemotherapy. 72(4). dkw536–dkw536. 27 indexed citations

18.

Thelwall, Simon, Pauline Harrington, Elizabeth Sheridan, & Theresa Lamagni. (2015). Impact of obesity on the risk of wound infection following surgery: results from a nationwide prospective multicentre cohort study in England. Clinical Microbiology and Infection. 21(11). 1008.e1–1008.e8. 112 indexed citations

19.

Green, Nathan, Alan P. Johnson, Katherine L. Henderson, et al.. (2014). Quantifying the Burden of Hospital-Acquired Bloodstream Infection in Children in England by Estimating Excess Length of Hospital Stay and Mortality Using a Multistate Analysis of Linked, Routinely Collected Data. Journal of the Pediatric Infectious Diseases Society. 4(4). 305–312. 19 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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