Amanda Leach

4.3k total citations · 1 hit paper
22 papers, 1.8k citations indexed

About

Amanda Leach is a scholar working on Epidemiology, Public Health, Environmental and Occupational Health and Health. According to data from OpenAlex, Amanda Leach has authored 22 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Epidemiology, 7 papers in Public Health, Environmental and Occupational Health and 6 papers in Health. Recurrent topics in Amanda Leach's work include Pneumonia and Respiratory Infections (7 papers), Vaccine Coverage and Hesitancy (6 papers) and Malaria Research and Control (5 papers). Amanda Leach is often cited by papers focused on Pneumonia and Respiratory Infections (7 papers), Vaccine Coverage and Hesitancy (6 papers) and Malaria Research and Control (5 papers). Amanda Leach collaborates with scholars based in United Kingdom, Gambia and United States. Amanda Leach's co-authors include Shabbar Jaffar, Brian Greenwood, Stephen Obaro, Johan Vekemans, Joe Cohen, Victor Nussenzweig, B. M. Greenwood, Mahama Saaka, G. Enwere and Claire Oluwalana and has published in prestigious journals such as The Lancet, PLoS ONE and Social Science & Medicine.

In The Last Decade

Amanda Leach

21 papers receiving 1.8k 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.

Efficacy of nine-valent pneumococcal conjugate vaccine against pneumonia and invasive pneumococcal disease in The Gambia: randomised, double-blind, placebo-controlled trial

2005 674 citations G. Enwere, Shabbar Jaffar et al. The Lancet profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Amanda Leach United Kingdom	16	1.1k	573	541	182	174	22	1.8k
Natalie McCall United States	9	2.0k 1.9×	905 1.6×	408 0.8×	99 0.5×	125 0.7×	24	2.5k
Anna Roca Gambia	25	1.0k 1.0×	291 0.5×	330 0.6×	219 1.2×	138 0.8×	77	1.9k
Fiona M. Russell Australia	25	1.4k 1.3×	447 0.8×	201 0.4×	124 0.7×	79 0.5×	127	2.1k
A. K. Bradley United Kingdom	26	769 0.7×	473 0.8×	1.0k 1.9×	471 2.6×	94 0.5×	58	2.4k
Zhaoxia Zhou United States	23	806 0.8×	833 1.5×	201 0.4×	179 1.0×	173 1.0×	49	1.5k
Odile Leroy France	22	887 0.8×	497 0.9×	542 1.0×	39 0.2×	226 1.3×	51	1.7k
Marie‐Pierre Préziosi Switzerland	19	926 0.9×	900 1.6×	465 0.9×	78 0.4×	76 0.4×	38	1.6k
Catherine Healy United States	19	934 0.9×	639 1.1×	359 0.7×	91 0.5×	82 0.5×	39	1.6k
Sergi Sanz Spain	29	849 0.8×	122 0.2×	1.2k 2.3×	425 2.3×	154 0.9×	74	2.6k
Mulat Zerihun United States	23	496 0.5×	757 1.3×	393 0.7×	234 1.3×	29 0.2×	57	1.5k

Countries citing papers authored by Amanda Leach

Since Specialization

Citations

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

Fields of papers citing papers by Amanda Leach

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Amanda Leach

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

Ronis, Sarah, et al.. (2025). Health Impacts of Health System Implementation of a Food-as-Medicine Strategy. The American Journal of Managed Care. 31(Spec. No. 3). SP127–SP135.

Umeh, Rich, Stephen Oguche, Tagbo Oguonu, et al.. (2014). Immunogenicity and safety of the candidate RTS,S/AS01 vaccine in young Nigerian children: A randomized, double-blind, lot-to-lot consistency trial. Vaccine. 32(48). 6556–6562. 6 indexed citations

Aíde, Pedro, John J. Aponte, Montse Renom, et al.. (2010). Safety, Immunogenicity and Duration of Protection of the RTS,S/AS02D Malaria Vaccine: One Year Follow-Up of a Randomized Controlled Phase I/IIb Trial. PLoS ONE. 5(11). e13838–e13838. 35 indexed citations

Cohen, Joe, et al.. (2010). Le candidat vaccin antipaludique RTS,S/AS est entré en essais cliniques de phase III. Annales Pharmaceutiques Françaises. 68(6). 370–379. 6 indexed citations

Cohen, Joe, Victor Nussenzweig, Johan Vekemans, & Amanda Leach. (2010). From the circumsporozoite protein to the RTS,S/AS candidate vaccine. Human Vaccines. 6(1). 90–96. 175 indexed citations

Macete, Eusébio, Jahit Sacarlal, John J. Aponte, et al.. (2007). Evaluation of two formulations of adjuvanted RTS, S malaria vaccine in children aged 3 to 5 years living in a malaria-endemic region of Mozambique: a Phase I/IIb randomized double-blind bridging trial. Trials. 8(1). 11–11. 25 indexed citations

Macete, Eusébio, John J. Aponte, Caterina Guinovart, et al.. (2006). Safety and immunogenicity of the RTS,S/AS02A candidate malaria vaccine in children aged 1–4 in Mozambique. Tropical Medicine & International Health. 12(1). 37–46. 30 indexed citations

Enwere, G., Shabbar Jaffar, Claire Oluwalana, et al.. (2005). Efficacy of nine-valent pneumococcal conjugate vaccine against pneumonia and invasive pneumococcal disease in The Gambia: randomised, double-blind, placebo-controlled trial. The Lancet. 365(9465). 1139–1146. 674 indexed citations breakdown →

Jaffar, Shabbar, Amanda Leach, Peter G. Smith, Felicity T. Cutts, & Brian Greenwood. (2003). Effects of misclassification of causes of death on the power of a trial to assess the efficacy of a pneumococcal conjugate vaccine in The Gambia. International Journal of Epidemiology. 32(3). 430–436. 23 indexed citations

10.

Leach, Amanda, THERESA F. MCARDLE, Winston Banya, et al.. (1999). Neonatal mortality in a rural area of The Gambia. Annals of Tropical Paediatrics. 19(1). 33–43. 59 indexed citations

11.

Jaffar, Shabbar, Amanda Leach, Andrew Hall, et al.. (1999). Preparation for a pneumococcal vaccine trial in The Gambia: individual or community randomisation?. Vaccine. 18(7-8). 633–640. 19 indexed citations

12.

Leach, Amanda, et al.. (1999). An evaluation of the informed consent procedure used during a trial of a Haemophilus influenzae type B conjugate vaccine undertaken in The Gambia, West Africa. Social Science & Medicine. 48(2). 139–148. 77 indexed citations

13.

Jaffar, Shabbar, et al.. (1998). Causes of mortality in twins in a rural region of The Gambia, West Africa. Annals of Tropical Paediatrics. 18(3). 231–238. 23 indexed citations

14.

Adegbola, Richard A., et al.. (1998). Antigenuria in gambian infants following immunization with a Haemophilus influenzae type b polyribosylribitol phosphate-tetanus toxoid protein conjugate (PRP-T) vaccine. Diagnostic Microbiology and Infectious Disease. 32(1). 15–19. 2 indexed citations

15.

Jaffar, Shabbar, Amanda Leach, A.M. Greenwood, et al.. (1997). Changes in the pattern of infant and childhood mortality in Upper River Division, The Gambia, from 1989 to 1993. Tropical Medicine & International Health. 2(1). 28–37. 101 indexed citations

16.

Leach, Amanda, Patrick Twumasi, Shabbar Jaffar, et al.. (1997). Induction of Immunologic Memory in Gambian Children by Vaccination in Infancy with a Group A plus Group C Meningococcal Polysaccharide-Protein Conjugate Vaccine. The Journal of Infectious Diseases. 175(1). 200–204. 172 indexed citations

17.

Leach, Amanda, Serign J. Ceesay, Winston Banya, & Brian Greenwood. (1996). Pilot trial of a pentavalent pneumococcal polysaccharide/protein conjugate vaccine in Gambian infants. The Pediatric Infectious Disease Journal. 15(4). 333–339. 79 indexed citations

18.

D’Alessandro, Umberto, Amanda Leach, B.O. Olaleye, et al.. (1995). Efficacy trial of malaria vaccine SPf66 in Gambian infants. The Lancet. 346(8973). 462–467. 142 indexed citations

19.

Leach, Amanda, Umberto D’Alessandro, Greg Fegan, et al.. (1995). A pilot safety and immunogenicity study of the malaria vaccine SPf66 in Gambian infants. Parasite Immunology. 17(8). 441–444. 23 indexed citations

20.

Twumasi, Patrick, Amanda Leach, Tim O’Dempsey, et al.. (1995). A Trial Of A Group A Plus Group C Meningococcal Polysaccharide-Protein. The Journal of Infectious Diseases. 171(3). 632–638. 129 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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