Jemma Walker

2.2k total citations · 1 hit paper
36 papers, 1.3k citations indexed

About

Jemma Walker is a scholar working on Epidemiology, Health and Infectious Diseases. According to data from OpenAlex, Jemma Walker has authored 36 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Epidemiology, 12 papers in Health and 5 papers in Infectious Diseases. Recurrent topics in Jemma Walker's work include Vaccine Coverage and Hesitancy (8 papers), Influenza Virus Research Studies (6 papers) and Herpesvirus Infections and Treatments (6 papers). Jemma Walker is often cited by papers focused on Vaccine Coverage and Hesitancy (8 papers), Influenza Virus Research Studies (6 papers) and Herpesvirus Infections and Treatments (6 papers). Jemma Walker collaborates with scholars based in United Kingdom, United States and South Africa. Jemma Walker's co-authors include Pauline Paterson, Richard Clarke, Sandra Mounier‐Jack, Sadie Bell, Michelle L. Bell, Jonathan M. Samet, Francesca Dominici, Keita Ebisu, Scott L. Zeger and Roger D. Peng and has published in prestigious journals such as Nature Communications, Gastroenterology and PLoS ONE.

In The Last Decade

Jemma Walker

34 papers receiving 1.3k 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.

Parents’ and guardians’ views on the acceptability of a future COVID-19 vaccine: A multi-methods study in England

2020 379 citations Sadie Bell, Richard Clarke et al. Vaccine profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jemma Walker United Kingdom	14	597	428	303	275	157	36	1.3k
Ana Paula Sayuri Sato Brazil	20	549 0.9×	226 0.5×	407 1.3×	52 0.2×	77 0.5×	77	1.3k
Pasquale Stefanizzi Italy	24	676 1.1×	668 1.6×	506 1.7×	40 0.1×	155 1.0×	111	1.4k
Chuanxi Fu China	21	295 0.5×	438 1.0×	475 1.6×	143 0.5×	155 1.0×	54	1.1k
Patricia R. Blank Switzerland	21	585 1.0×	170 0.4×	856 2.8×	55 0.2×	179 1.1×	50	1.4k
Kate M. Shaw United States	20	567 0.9×	167 0.4×	537 1.8×	28 0.1×	29 0.2×	36	1.5k
Marco Del Riccio Italy	16	247 0.4×	231 0.5×	319 1.1×	57 0.2×	97 0.6×	75	852
Winston E. Abara United States	20	203 0.3×	530 1.2×	442 1.5×	56 0.2×	20 0.1×	55	1.2k
Aneta Nitsch‐Osuch Poland	18	211 0.4×	257 0.6×	478 1.6×	37 0.1×	36 0.2×	188	1.3k
Janet D. Cragan United States	32	182 0.3×	244 0.6×	928 3.1×	53 0.2×	48 0.3×	72	3.0k
Chee Fu Yung Singapore	19	152 0.3×	665 1.6×	382 1.3×	48 0.2×	207 1.3×	76	1.3k

Countries citing papers authored by Jemma Walker

Since Specialization

Citations

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

Fields of papers citing papers by Jemma Walker

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jemma Walker

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

All Works

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20 of 20 papers shown

Broad, Jonathan, Louise Letley, Jemma Walker, et al.. (2025). An England-wide survey on attitudes towards antenatal and infant immunisation against respiratory syncytial virus amongst pregnant and post-partum women. Vaccine. 62. 127482–127482. 1 indexed citations

Graham, Sophie, Jemma Walker, Nick Andrews, et al.. (2024). Identifying markers of health-seeking behaviour and healthcare access in UK electronic health records. BMJ Open. 14(9). e081781–e081781. 1 indexed citations

Graham, Sophie, Jemma Walker, Nick Andrews, et al.. (2024). Quantifying and Adjusting for Confounding From Health-Seeking Behavior and Health Care Access in Observational Research. Open Forum Infectious Diseases. 11(10). ofae598–ofae598.

Walker, Jemma, et al.. (2024). A New Validated Approach for Identifying Childhood Immunizations in Electronic Health Records in the United Kingdom. Pharmacoepidemiology and Drug Safety. 33(8). e5848–e5848. 1 indexed citations

Graham, Sophie, Elise Tessier, Julia Stowe, et al.. (2023). Bias assessment of a test-negative design study of COVID-19 vaccine effectiveness used in national policymaking. Nature Communications. 14(1). 3984–3984. 3 indexed citations

Walker, Jemma, et al.. (2023). Timeliness of childhood vaccination in England: A population-based cohort study. Vaccine. 41(39). 5775–5781. 9 indexed citations

Verberk, Janneke D. M., Jan van de Kassteele, Nick Andrews, et al.. (2021). Impact analysis of rotavirus vaccination in various geographic regions in Western Europe. Vaccine. 39(45). 6671–6681. 8 indexed citations

Walker, Jemma, Christopher T. Rentsch, Helen McDonald, et al.. (2021). Social determinants of pertussis and influenza vaccine uptake in pregnancy: a national cohort study in England using electronic health records. BMJ Open. 11(6). e046545–e046545. 20 indexed citations

Walker, Jemma, Daniel Grint, Helen Strongman, et al.. (2021). UK prevalence of underlying conditions which increase the risk of severe COVID-19 disease: a point prevalence study using electronic health records. BMC Public Health. 21(1). 484–484. 22 indexed citations

10.

Bell, Sadie, Richard Clarke, Sandra Mounier‐Jack, Jemma Walker, & Pauline Paterson. (2020). Parents’ and guardians’ views on the acceptability of a future COVID-19 vaccine: A multi-methods study in England. Vaccine. 38(49). 7789–7798. 379 indexed citations breakdown →

11.

Andrews, Nick, Julia Stowe, Sara L. Thomas, Jemma Walker, & Elizabeth Miller. (2019). The risk of non-specific hospitalised infections following MMR vaccination given with and without inactivated vaccines in the second year of life. Comparative self–controlled case-series study in England. Vaccine. 37(36). 5211–5217. 7 indexed citations

12.

Walker, Jemma, Nick Andrews, Gayatri Amirthalingam, et al.. (2018). Effectiveness of herpes zoster vaccination in an older United Kingdom population. Vaccine. 36(17). 2371–2377. 41 indexed citations

13.

Hoek, Albert Jan van, et al.. (2017). Identifying social factors amongst older individuals in linked electronic health records: An assessment in a population based study. PLoS ONE. 12(11). e0189038–e0189038. 30 indexed citations

14.

Scott, Ian C., Frühling Rijsdijk, Jemma Walker, et al.. (2015). Do Genetic Susceptibility Variants Associate with Disease Severity in Early Active Rheumatoid Arthritis?. The Journal of Rheumatology. 42(7). 1131–1140. 19 indexed citations

15.

Walker, Jemma, Saumya Wickramasinghe, Mónica Hernández, et al.. (2014). Pharmacogenetics of pemetrexed combination therapy in lung cancer: pathway analysis reveals novel toxicity associations. The Pharmacogenomics Journal. 14(5). 411–417. 18 indexed citations

16.

Reeves, Barnaby C, Simon Harding, Julia Langham, et al.. (2012). Verteporfin photodynamic therapy for neovascular age-related macular degeneration: cohort study for the UK.. Health Technology Assessment. 16(6). i–xii, 1. 12 indexed citations

17.

Reeves, Barnaby C, Julia Langham, Jemma Walker, et al.. (2009). Verteporfin Photodynamic Therapy Cohort Study. Ophthalmology. 116(12). 2463–2470. 10 indexed citations

18.

Grieve, Richard, Carla Guerriero, Jemma Walker, et al.. (2009). Verteporfin Photodynamic Therapy Cohort Study. Ophthalmology. 116(12). 2471–2477.e2. 12 indexed citations

19.

Harding, Simon, Keith Tomlin, Barnaby C Reeves, et al.. (2009). Verteporfin Photodynamic Therapy Cohort Study: Report 1: Effectiveness and Factors Influencing Outcomes. Ophthalmology. 116(12). e1–e8. 9 indexed citations

20.

Bell, Michelle L., Keita Ebisu, Roger D. Peng, et al.. (2008). Seasonal and Regional Short-term Effects of Fine Particles on Hospital Admissions in 202 US Counties, 1999–2005. American Journal of Epidemiology. 168(11). 1301–1310. 281 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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