Ellen Fragaszy

Affiliations

Institute of Health Informatics, University College London, London, UK.
Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, UK.

Publications (24)

Spike-antibody responses to COVID-19 vaccination by demographic and clinical factors in a prospective community cohort study.

Nature communications

Avec: Madhumita Shrotri , Ellen Fragaszy , Vincent Nguyen , Annalan M D Navaratnam , Cyril Geismar , Sarah Beale , Jana Kovar , Thomas E Byrne , Wing Lam Erica Fong , Parth Patel , Anna Aryee , Isobel Braithwaite , Anne M Johnson , Alison Rodger , Andrew C Hayward , Robert W Aldridge

Differential Risk of SARS-CoV-2 Infection by Occupation: Evidence from the Virus Watch prospective cohort study in England and Wales.

Journal of occupational medicine and toxicology (London, England)

Avec: Sarah Beale , Susan Hoskins , Thomas Byrne , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Jana Kovar , Annalan M D Navaratnam , Vincent Nguyen , Parth Patel , Alexei Yavlinsky , Anne M Johnson , Martie Van Tongeren , Robert W Aldridge , Andrew Hayward , Auteur inconnu

Inequalities in access to paid sick leave among workers in England and Wales.

The International journal of health planning and management

Avec: Parth Patel , Sarah Beale , Vincent Nguyen , Isobel Braithwaite , Thomas E Byrne , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Susan Hoskins , Annalan M D Navaratnam , Madhumita Shrotri , Jana Kovar , Anna Aryee , Andrew C Hayward , Robert W Aldridge

Feasibility study of hospital antimicrobial stewardship analytics using electronic health records.

JAC-antimicrobial resistance

Avec: P F Dutey-Magni , M J Gill , D McNulty , G Sohal , A Hayward , L Shallcross , Niall Anderson , Elise Crayton , Gillian Forbes , Arnoupe Jhass , Emma Richardson , Michelle Richardson , Patrick Rockenschaub , Catherine Smith , Elizabeth Sutton , Rosanna Traina , Lou Atkins , Anne Conolly , Spiros Denaxas , Ellen Fragaszy , Rob Horne , Patty Kostkova , Fabiana Lorencatto , Susan Michie , Jennifer Mindell , John Robson , Claire Royston , Carolyn Tarrant , James Thomas , Jonathan West , Haydn Williams , Nadia Elsay , Chris Fuller

Relative contribution of essential and non-essential activities to SARS-CoV-2 transmission following the lifting of public health restrictions in England and Wales.

Epidemiology and infection

Avec: Susan Hoskins , Sarah Beale , Vincent Nguyen , Yamina Boukari , Alexei Yavlinsky , Jana Kovar , Thomas Byrne , Ellen Fragaszy , Wing Lam Erica Fong , Cyril Geismar , Parth Patel , Annalan M D Navaratnam , Martie van Tongeren , Anne M Johnson , Robert W Aldridge , Andrew Hayward , Auteur inconnu

Bayesian reconstruction of household transmissions to infer the serial interval of COVID-19 by variants of concern: analysis from a prospective community cohort study (Virus Watch).

Lancet (London, England)

Avec: Cyril Geismar , Vincent Nguyen , Ellen Fragaszy , Madhumita Shrotri , Annalan M D Navaratnam , Sarah Beale , Thomas E Byrne , Wing Lam Erica Fong , Alexei Yavlinsky , Jana Kovar , Isobel Braithwaite , Robert W Aldridge , Andrew C Hayward , Peter White , Thibaut Jombart , Anne Cori

Bayesian reconstruction of SARS-CoV-2 transmissions highlights substantial proportion of negative serial intervals.

Epidemics

Avec: Cyril Geismar , Vincent Nguyen , Ellen Fragaszy , Madhumita Shrotri , Annalan M D Navaratnam , Sarah Beale , Thomas E Byrne , Wing Lam Erica Fong , Alexei Yavlinsky , Jana Kovar , Susan Hoskins , Isobel Braithwaite , Robert W Aldridge , Andrew C Hayward , Peter J White , Thibaut Jombart , Anne Cori

An interdisciplinary mixed-methods approach to developing antimicrobial stewardship interventions: Protocol for the Preserving Antibiotics through Safe Stewardship (PASS) Research Programme.

Wellcome open research

Avec: Laura Shallcross , Fabiana Lorencatto , Christopher Fuller , Carolyn Tarrant , Jonathan West , Rosanna Traina , Catherine Smith , Gillian Forbes , Elise Crayton , Patrick Rockenschaub , Peter Dutey-Magni , Emma Richardson , Ellen Fragaszy , Susan Michie , Andrew Hayward , Auteur inconnu

Occupation, work-related contact and SARS-CoV-2 anti-nucleocapsid serological status: findings from the Virus Watch prospective cohort study.

Occupational and environmental medicine

Avec: Sarah Beale , Parth Patel , Alison Rodger , Isobel Braithwaite , Thomas Byrne , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Jana Kovar , Annalan Navaratnam , Vincent Nguyen , Madhumita Shrotri , Anna Aryee , Robert Aldridge , Andrew Hayward , Auteur inconnu

Tracking Changes in Mobility Before and After the First SARS-CoV-2 Vaccination Using Global Positioning System Data in England and Wales (Virus Watch): Prospective Observational Community Cohort Study.

JMIR public health and surveillance

Avec: Vincent Nguyen , Yunzhe Liu , Richard Mumford , Benjamin Flanagan , Parth Patel , Isobel Braithwaite , Madhumita Shrotri , Thomas Byrne , Sarah Beale , Anna Aryee , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Annalan M D Navaratnam , Pia Hardelid , Jana Kovar , Addy Pope , Tao Cheng , Andrew Hayward , Robert Aldridge , Auteur inconnu

Symptom profiles of community cases infected by influenza, RSV, rhinovirus, seasonal coronavirus, and SARS-CoV-2 variants of concern.

Scientific reports

Avec: Cyril Geismar , Vincent Nguyen , Ellen Fragaszy , Madhumita Shrotri , Annalan M D Navaratnam , Sarah Beale , Thomas E Byrne , Wing Lam Erica Fong , Alexei Yavlinsky , Jana Kovar , Susan Hoskins , Isobel Braithwaite , Robert W Aldridge , Andrew C Hayward

Trends, patterns and psychological influences on COVID-19 vaccination intention: Findings from a large prospective community cohort study in England and Wales (Virus Watch).

Vaccine

Avec: Thomas Byrne , Parth Patel , Madhumita Shrotri , Sarah Beale , Susan Michie , Jabeer Butt , Nicky Hawkins , Pia Hardelid , Alison Rodger , Anna Aryee , Isobel Braithwaite , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Jana Kovar , Annalan M D Navaratnam , Vincent Nguyen , Andrew Hayward , Robert W Aldridge , Auteur inconnu

Risk factors, symptom reporting, healthcare-seeking behaviour and adherence to public health guidance: protocol for Virus Watch, a prospective community cohort study.

BMJ open

Avec: Andrew Hayward , Ellen Fragaszy , Jana Kovar , Vincent Nguyen , Sarah Beale , Thomas Byrne , Anna Aryee , Pia Hardelid , Linda Wijlaars , Wing Lam Erica Fong , Cyril Geismar , Parth Patel , Madhumita Shrotri , Annalan M D Navaratnam , Eleni Nastouli , Moira Spyer , Ben Killingley , Ingemar Cox , Vasileios Lampos , Rachel A McKendry , Yunzhe Liu , Tao Cheng , Anne M Johnson , Susan Michie , Jo Gibbs , Richard Gilson , Alison Rodger , Robert W Aldridge

SARS-CoV-2 antibodies and breakthrough infections in the Virus Watch cohort.

Nature communications

Avec: Robert W Aldridge , Alexei Yavlinsky , Vincent Nguyen , Max T Eyre , Madhumita Shrotri , Annalan M D Navaratnam , Sarah Beale , Isobel Braithwaite , Thomas Byrne , Jana Kovar , Ellen Fragaszy , Wing Lam Erica Fong , Cyril Geismar , Parth Patel , Alison Rodger , Anne M Johnson , Andrew Hayward

Occupation, Worker Vulnerability, and COVID-19 Vaccination Uptake: Analysis of the Virus Watch prospective cohort study.

Vaccine

Avec: Sarah Beale , Rachel Burns , Isobel Braithwaite , Thomas Byrne , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Susan Hoskins , Jana Kovar , Annalan M D Navaratnam , Vincent Nguyen , Parth Patel , Alexei Yavlinsky , Martie Van Tongeren , Robert W Aldridge , Andrew Hayward , Auteur inconnu

The incidence of COVID-19-related hospitalisation in migrants in the UK: Findings from the Virus Watch prospective community cohort study.

Journal of migration and health

Avec: Wing Lam Erica Fong , Vincent G Nguyen , Rachel Burns , Yamina Boukari , Sarah Beale , Isobel Braithwaite , Thomas E Byrne , Cyril Geismar , Ellen Fragaszy , Susan Hoskins , Jana Kovar , Annalan Md Navaratnam , Youssof Oskrochi , Parth Patel , Sam Tweed , Alexei Yavlinsky , Andrew C Hayward , Robert W Aldridge

Eyeglasses and risk of COVID-19 transmission-analysis of the Virus Watch Community Cohort study.

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

Avec: Annalan M D Navaratnam , Christopher O'Callaghan , Sarah Beale , Vincent Nguyen , Anna Aryee , Isobel Braithwaite , Thomas E Byrne , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Susan Hoskins , Jana Kovar , Parth Patel , Madhumita Shrotri , Sophie Weber , Alexei Yavlinsky , Robert W Aldridge , Andrew C Hayward , Auteur inconnu

Comparative effectiveness of different primary vaccination courses on mRNA-based booster vaccines against SARs-COV-2 infections: a time-varying cohort analysis using trial emulation in the Virus Watch community cohort.

International journal of epidemiology

Avec: Vincent Grigori Nguyen , Alexei Yavlinsky , Sarah Beale , Susan Hoskins , Thomas E Byrne , Vasileios Lampos , Isobel Braithwaite , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Jana Kovar , Annalan M D Navaratnam , Parth Patel , Madhumita Shrotri , Sophie Weber , Andrew C Hayward , Robert W Aldridge

Estimates for quality of life loss due to Respiratory Syncytial Virus.

Influenza and other respiratory viruses

Avec: David Hodgson , Katherine E Atkins , Marc Baguelin , Jasmina Panovska-Griffiths , Dominic Thorrington , Albert Jan van Hoek , Hongxin Zhao , Ellen Fragaszy , Andrew C Hayward , Richard Pebody

The UK's pandemic influenza research portfolio: a model for future research on emerging infections.

The Lancet. Infectious diseases

Avec: Colin R Simpson , Dan Beever , Kirsty Challen , Daniela De Angelis , Ellen Fragaszy , Steve Goodacre , Andrew Hayward , Wei Shen Lim , G James Rubin , Malcolm G Semple , Marian Knight , Auteur inconnu

Deprivation and exposure to public activities during the COVID-19 pandemic in England and Wales.

Journal of epidemiology and community health

Avec: Sarah Beale , Isobel Braithwaite , Annalan Md Navaratnam , Pia Hardelid , Alison Rodger , Anna Aryee , Thomas E Byrne , Erica Wing Lam Fong , Ellen Fragaszy , Cyril Geismar , Jana Kovar , Vincent Nguyen , Parth Patel , Madhumita Shrotri , Robert Aldridge , Andrew Hayward , Auteur inconnu

Workplace contact patterns in England during the COVID-19 pandemic: Analysis of the Virus Watch prospective cohort study.

The Lancet regional health. Europe

Nucleocapsid and spike antibody responses following virologically confirmed SARS-CoV-2 infection: an observational analysis in the Virus Watch community cohort.

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases

Avec: Annalan M D Navaratnam , Madhumita Shrotri , Vincent Nguyen , Isobel Braithwaite , Sarah Beale , Thomas E Byrne , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Susan Hoskins , Jana Kovar , Parth Patel , Alexei Yavlinsky , Anna Aryee , Alison Rodger , Andrew C Hayward , Robert W Aldridge , Auteur inconnu

A case-crossover study of the effect of vaccination on SARS-CoV-2 transmission relevant behaviours during a period of national lockdown in England and Wales.

Vaccine

Avec: Aimee Serisier , Sarah Beale , Yamina Boukari , Susan Hoskins , Vincent Nguyen , Thomas Byrne , Wing Lam Erica Fong , Ellen Fragaszy , Cyril Geismar , Jana Kovar , Alexei Yavlinsky , Andrew Hayward , Robert W Aldridge

Réseau de co-auteurs

Cyril Geismar 20 collaborations

Sarah Beale 20 collaborations

Jana Kovar 20 collaborations

Wing Lam Erica Fong 19 collaborations

Vincent Nguyen 18 collaborations

Robert W Aldridge 17 collaborations

Annalan M D Navaratnam 16 collaborations

Parth Patel 16 collaborations

Isobel Braithwaite 15 collaborations

Madhumita Shrotri 14 collaborations

Alexei Yavlinsky 13 collaborations

Andrew Hayward 13 collaborations

Susan Hoskins 12 collaborations

None None 12 collaborations

Thomas E Byrne 10 collaborations

Andrew C Hayward 10 collaborations

Thomas Byrne 10 collaborations

Anna Aryee 9 collaborations

Alison Rodger 7 collaborations

Anne M Johnson 6 collaborations

Susan Michie 4 collaborations

Pia Hardelid 4 collaborations

Martie Van Tongeren 3 collaborations

Yamina Boukari 3 collaborations

Robert Aldridge 3 collaborations

Elise Crayton 2 collaborations

Gillian Forbes 2 collaborations

Emma Richardson 2 collaborations

Patrick Rockenschaub 2 collaborations

Catherine Smith 2 collaborations

Rosanna Traina 2 collaborations

Fabiana Lorencatto 2 collaborations

Carolyn Tarrant 2 collaborations

Jonathan West 2 collaborations

Thibaut Jombart 2 collaborations

Anne Cori 2 collaborations

Yunzhe Liu 2 collaborations

Tao Cheng 2 collaborations

Vasileios Lampos 2 collaborations

Rachel Burns 2 collaborations

Annalan Md Navaratnam 2 collaborations

Sophie Weber 2 collaborations

P F Dutey-Magni 1 collaboration

M J Gill 1 collaboration

D McNulty 1 collaboration

G Sohal 1 collaboration

A Hayward 1 collaboration

L Shallcross 1 collaboration

Niall Anderson 1 collaboration

Arnoupe Jhass 1 collaboration

Michelle Richardson 1 collaboration

Elizabeth Sutton 1 collaboration

Lou Atkins 1 collaboration

Anne Conolly 1 collaboration

Spiros Denaxas 1 collaboration

Rob Horne 1 collaboration

Patty Kostkova 1 collaboration

Jennifer Mindell 1 collaboration

John Robson 1 collaboration

Claire Royston 1 collaboration

James Thomas 1 collaboration

Haydn Williams 1 collaboration

Nadia Elsay 1 collaboration

Chris Fuller 1 collaboration

Martie van Tongeren 1 collaboration

Peter White 1 collaboration

Peter J White 1 collaboration

Laura Shallcross 1 collaboration

Christopher Fuller 1 collaboration

Peter Dutey-Magni 1 collaboration

Annalan Navaratnam 1 collaboration

Richard Mumford 1 collaboration

Benjamin Flanagan 1 collaboration

Addy Pope 1 collaboration

Jabeer Butt 1 collaboration

Nicky Hawkins 1 collaboration

Linda Wijlaars 1 collaboration

Eleni Nastouli 1 collaboration

Moira Spyer 1 collaboration

Ben Killingley 1 collaboration

Ingemar Cox 1 collaboration

Rachel A McKendry 1 collaboration

Jo Gibbs 1 collaboration

Richard Gilson 1 collaboration

Max T Eyre 1 collaboration

Vincent G Nguyen 1 collaboration

Youssof Oskrochi 1 collaboration

Sam Tweed 1 collaboration

Christopher O'Callaghan 1 collaboration

Vincent Grigori Nguyen 1 collaboration

David Hodgson 1 collaboration

Katherine E Atkins 1 collaboration

Marc Baguelin 1 collaboration

Jasmina Panovska-Griffiths 1 collaboration

Dominic Thorrington 1 collaboration

Albert Jan van Hoek 1 collaboration

Hongxin Zhao 1 collaboration

Richard Pebody 1 collaboration

Colin R Simpson 1 collaboration

Dan Beever 1 collaboration

Kirsty Challen 1 collaboration

Daniela De Angelis 1 collaboration

Steve Goodacre 1 collaboration

Wei Shen Lim 1 collaboration

G James Rubin 1 collaboration

Malcolm G Semple 1 collaboration

Marian Knight 1 collaboration

Erica Wing Lam Fong 1 collaboration

Aimee Serisier 1 collaboration