Mary Ramsay

45.0k total citations · 7 hit papers
457 papers, 20.9k citations indexed

About

Mary Ramsay is a scholar working on Epidemiology, Microbiology and Infectious Diseases. According to data from OpenAlex, Mary Ramsay has authored 457 papers receiving a total of 20.9k indexed citations (citations by other indexed papers that have themselves been cited), including 317 papers in Epidemiology, 144 papers in Microbiology and 107 papers in Infectious Diseases. Recurrent topics in Mary Ramsay's work include Bacterial Infections and Vaccines (143 papers), Pneumonia and Respiratory Infections (127 papers) and Vaccine Coverage and Hesitancy (91 papers). Mary Ramsay is often cited by papers focused on Bacterial Infections and Vaccines (143 papers), Pneumonia and Respiratory Infections (127 papers) and Vaccine Coverage and Hesitancy (91 papers). Mary Ramsay collaborates with scholars based in United Kingdom, Australia and Maldives. Mary Ramsay's co-authors include Nick Andrews, Shamez Ladhani, Caroline Trotter, Elizabeth Miller, Helen Campbell, Gayatri Amirthalingam, Ray Borrow, Jamie Lopez Bernal, Mary Slack and Joanne White and has published in prestigious journals such as Science, New England Journal of Medicine and The Lancet.

In The Last Decade

Mary Ramsay

446 papers receiving 20.1k citations

Hit Papers

5 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. profile →
Effectiveness of the Pfizer-BioNTech and Oxford-AstraZeneca vaccines on covid-19 related symptoms, hospital admissions, and mortality in older adults in England: test negative case-control study

2021 744 citations Jamie Lopez Bernal, Nick Andrews et al. profile →
Global epidemiology of meningococcal disease

2009 581 citations Caroline Trotter, Mary Ramsay et al. Vaccine profile →
Effectiveness of maternal pertussis vaccination in England: an observational study

2014 529 citations Gayatri Amirthalingam, Nick Andrews et al. profile →
Rapid increase in non-vaccine serotypes causing invasive pneumococcal disease in England and Wales, 2000–17: a prospective national observational cohort study

2018 372 citations Shamez Ladhani, Ray Borrow et al. The Lancet Infectious Diseases profile →
Effectiveness of one dose of MVA–BN smallpox vaccine against mpox in England using the case-coverage method: an observational study

2023 87 citations Nick Andrews, Shamez Ladhani et al. The Lancet Infectious Diseases profile →
Invasive pneumococcal disease 3 years after introduction of a reduced 1 + 1 infant 13-valent pneumococcal conjugate vaccine immunisation schedule in England: a prospective national observational surveillance study

2024 49 citations Nick Andrews, Mary Ramsay et al. The Lancet Infectious Diseases profile →

Peers

Countries citing papers authored by Mary Ramsay

Since Specialization

Citations

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

Fields of papers citing papers by Mary Ramsay

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Mary Ramsay

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

#	Work	Indexed citations
1	Risk of invasive meningococcal disease in people with sickle cell disease: A systematic review 2025 ·Journal of Infection ·Catherine Isitt, Helen Campbell, Catherine A. Cosgrove, Mary Ramsay, Paul T. Heath, Ray Borrow, Shamez Ladhani	1
2	Estimating the potential number of cases prevented by infant/ toddler immunisation with a MenACWY vaccine 2024 ·Vaccine ·(unknown), (unknown), (unknown), Mary Ramsay, Helen Campbell, Caroline Trotter	1
3	Severity of COVID-19 sub-lineages XBB/XBB 1.5/XBB1.16, EG.5.1. and JN.1. in England 2024 ·The Lancet Regional Health - Europe ·Catherine Quinot, Freja Kirsebom, Nick Andrews, Julia Stowe, Mary Ramsay, (unknown), Meaghan Kall, Jamie Lopez Bernal, (unknown)	1
4	Vaccine effectiveness against mild and severe covid-19 in pregnant individuals and their infants in England: test negative case-control study 2024 ·SHILAP Revista de lepidopterología ·Freja Kirsebom, Nick Andrews, Anna Mensah, Julia Stowe, Shamez Ladhani, Mary Ramsay, Jamie Lopez Bernal, Helen Campbell	2
5	Effectiveness of the Sanofi/GSK (VidPrevtyn Beta) and Pfizer-BioNTech (Comirnaty Original/Omicron BA.4-5) bivalent vaccines against hospitalisation in England 2024 ·EClinicalMedicine ·Freja Kirsebom, Nick Andrews, Julia Stowe, Gavin Dabrera, Mary Ramsay, Jamie Lopez Bernal	6
6	Duration of protection of ancestral-strain monovalent vaccines and effectiveness of bivalent BA.1 boosters against COVID-19 hospitalisation in England: a test-negative case-control study 2023 ·The Lancet Infectious Diseases ·Freja Kirsebom, Nick Andrews, Julia Stowe, Mary Ramsay, Jamie Lopez Bernal	32
7	Nasal mucosal IgA levels against SARS-CoV-2 and seasonal coronaviruses are low in children but boosted by reinfection 2023 ·Journal of Infection ·Alexander C. Dowell, Gokhan Tut, Jusnara Begum, Rachel Bruton, Christopher Bentley, Megan Butler, (unknown), Jianmin Zuo, Annabel Powell, Andrew Brent, Bernadette Brent, Frances Baawuah, Ifeanyichukwu Okike, Joanne Beckmann, Shazaad Ahmad, Felicity Aiano, Joanna Garstang, Mary Ramsay, Paul Moss, Shamez Ladhani	4
8	The impact of vaccination and SARS-CoV-2 variants on the virological response to SARS-CoV-2 infections during the Alpha, Delta, and Omicron waves in England 2023 ·Journal of Infection ·(unknown), Catherine Quinot, Freja Kirsebom, Nick Andrews, (unknown), Louise Letley, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), Samreen Ijaz, Maria Zambon, Kevin Brown, Mary Ramsay, Jamie Lopez Bernal	8
9	Effectiveness of ChAdOx1-S COVID-19 booster vaccination against the Omicron and Delta variants in England 2022 ·Nature Communications ·Freja Kirsebom, Nick Andrews, (unknown), Julia Stowe, Mary Ramsay, Jamie Lopez Bernal	27
10	Real-world data on immune responses following heterologous prime-boost COVID-19 vaccination schedule with Pfizer and AstraZeneca vaccines in England 2022 ·Journal of Infection ·Samantha J. Westrop, Heather Whitaker, Annabel Powell, (unknown), (unknown), Helen Campbell, Ruth Simmons, Lenesha Warrener, Mary Ramsay, Shamez Ladhani, Kevin Brown, Gayatri Amirthalingam	13
11	Interactions between SARS-CoV-2 and influenza, and the impact of coinfection on disease severity: a test-negative design 2021 ·International Journal of Epidemiology ·Julia Stowe, Elise Tessier, Hongxin Zhao, Rebecca Guy, Berit Müller‐Pebody, Maria Zambon, Nick Andrews, Mary Ramsay, Jamie Lopez Bernal	154
12	Impact analysis of rotavirus vaccination in various geographic regions in Western Europe 2021 ·Vaccine ·Janneke D. M. Verberk, (unknown), Jan van de Kassteele, Nick Andrews, Rolina D. van Gaalen, Susan Hahné, Harry Vennema, Mary Ramsay, Tessa Braeckman, Shamez Ladhani, Samantha Thomas, Jemma Walker, Hester E. de Melker, Thea Kølsen Fischer, Judith Koch, Patricia Bruijning‐Verhagen	8
13	Protecting people with multiple sclerosis through vaccination 2020 ·Practical Neurology ·Saúl Reyes, Mary Ramsay, Shamez Ladhani, Gayatri Amirthalingam, Neena Singh, (unknown), Joela Mathews, Jonathan Lambourne, Mónica Marta, Benjamin Turner, Sharmilee Gnanapavan, Ruth Dobson, Klaus Schmierer, Gavin Giovannoni	36
14	Two centuries of immunisation in the UK (part II) 2019 ·Archives of Disease in Childhood ·Sarah Lang, (unknown), Noel McCarthy, Mary Ramsay, David Salisbury, Andrew J. Pollard	6
15	Modeling Future Changes to the Meningococcal Serogroup C Conjugate (MCC) Vaccine Program in England and Wales 2006 ·Human Vaccines ·Caroline Trotter, W. John Edmunds, Mary Ramsay, Elizabeth Miller	24
16	Nontoxigenic Corynebacterium diphtheriae: An Emerging Pathogen in England and Wales? 2000 ·Emerging infectious diseases ·Mark Reacher, Mary Ramsay, Joanne White, Aruni De Zoysa, Androulla Efstratiou, (unknown), Andrew J. Mackay, Robert C. George	2
17	Quarterly communicable disease review January to March 1999. From the PHLS Communicable Disease Surveillance Centre. Public Health Laboratory Service. 1999 ·PubMed ·(unknown), (unknown), Jeremy Hawker, Babatunde Olowokure, Mary Ramsay, Julius Weinberg, (unknown)	5
18	Control of hepatitis B in the United Kingdom 1998 ·Vaccine ·Mary Ramsay, Nigel Gay, Koye Balogun, Michael P. Collins	35
19	Adverse events after school leavers received combined tetanus and low dose diphtheria vaccine. 1997 ·PubMed ·Mary Ramsay, (unknown), J. M. Whalley	5
20	Adverse Events Associated with Childhood Vaccines: Evidence Bearing on Causality 1995 ·BMJ ·A Nicoll, Mary Ramsay	45

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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