Research
Read how they describe their research on their University of Toronto profile.
Latest papers
High-dose vs. standard-dose influenza vaccine in heart failure: the FLUNITY-HD trial.
European heart journal · 2026
High-Dose Versus Standard-Dose Influenza Vaccine and Cardiovascular Outcomes in Older Adults: The FLUNITY-HD Prespecified Pooled Analysis.
Circulation · 2026
High-Dose Influenza Vaccination in Atherosclerotic Cardiovascular Disease: A Multinational Pooled Analysis of DANFLU-2 and GALFLU (FLUNITY-HD).
Journal of the American College of Cardiology · 2026
74 publications.
High-dose vs. standard-dose influenza vaccine in heart failure: the FLUNITY-HD trial.
Johansen ND, Modin D, Pardo-Seco J, Rodriguez-Tenreiro-Sánchez C, Loiacono MM, Harris RC, Huang Y, van Aalst R, Chit A, Larsen CS, Larsen L, Wiese L, Dalager-Pedersen M, Claggett BL, Janstrup KH, Duran-Parrondo C, Piñeiro-Sotelo M, Cribeiro-González M, Conde-Pájaro M, Mirás-Carballal S, González-Pérez JM, Solomon SD, Sivapalan P, Martel CJ, Jensen JUS, Martinón-Torres F, Biering-Sørensen T, DANFLU-2 Study Group and Skaarup, the GALFLU Trial Team
High-Dose Versus Standard-Dose Influenza Vaccine and Cardiovascular Outcomes in Older Adults: The FLUNITY-HD Prespecified Pooled Analysis.
Johansen ND, Modin D, Pardo-Seco J, Rodriguez-Tenreiro-Sánchez C, Loiacono MM, Harris RC, Dufournet M, van Aalst R, Chit A, Larsen CS, Larsen L, Wiese L, Dalager-Pedersen M, Claggett BL, Janstrup KH, Duran-Parrondo C, Piñeiro-Sotelo M, Cribeiro-González M, Conde-Pájaro M, Mirás-Carballal S, González-Pérez JM, Solomon SD, Sivapalan P, Martel CJ, Jensen JUS, Martinón-Torres F, Biering-Sørensen T, DANFLU-2 Study Group and the GALFLU Trial Team
High-Dose Influenza Vaccination in Atherosclerotic Cardiovascular Disease: A Multinational Pooled Analysis of DANFLU-2 and GALFLU (FLUNITY-HD).
Pareek M, Johansen ND, Modin D, Pardo-Seco J, Rodriguez-Tenreiro-Sánchez C, Loiacono MM, Harris RC, Dufournet M, van Aalst R, Chit A, Larsen CS, Larsen L, Wiese L, Dalager-Pedersen M, Claggett BL, Janstrup KH, Duran-Parrondo C, Piñeiro-Sotelo M, Cribeiro-González M, Conde-Pájaro M, Mirás-Carballal S, González-Pérez JM, Solomon SD, Sivapalan P, Martel CJ, Jensen JUS, Martinón-Torres F, Biering-Sørensen T, DANFLU-2 Study Group and GALFLU Trial Team
Cost-Effectiveness of Nirsevimab and Clesrovimab in Preventing Respiratory Syncytial Virus Lower Respiratory Tract Disease in Infants in the United States: A Modeling Study.
Yarnoff B, Beuvelet M, Soudani S, Neary MP, Hodges EN, Chit A, Tribaldos M, Gabriel V, Musci R, Geurtsen J, Krilov LR
Estimation of Public Health Impact with Use of Nirsevimab During the 2024-2025 RSV Season in the USA: a Modeling Study.
Yarnoff B, Neary MP, Gabriel V, Ghemmouri M, Hodges EN, Tribaldos M, Geurtsen J, Chit A, Beuvelet M, Soudani S, Musci R, Krilov LR
Comment on Kura et al. Cost-Effectiveness Analysis of Clesrovimab for Respiratory Syncytial Virus in Infants in the United States. Vaccines 2026, 14, 411.
Hodges EN, Ghemmouri M, Neary MP, Gabriel V, Ottaviano C, Mari K, Ottobrino V, Chit A, Domachowske J, Yarnoff B, Musci R, Krilov LR
Regional Disparities in the Uptake of Differentiated Influenza Vaccines in the United States.
Mahmud SM, Pabla G, Righolt CH, Zhang G, Loiacono MM, Thommes E, Kabler H, Chit A
Comparison of the public health impact of RSV disease prevention options for infants: a static decision model of the US birth cohort.
Kieffer A, Ghemmouri M, Soudani S, Shin T, Hodges E, Greenberg M, Tribaldos M, Chit A, Beuvelet M, Neary MP, Gabriel V, Krilov LR, Geurtsen J, Musci R, Yarnoff B
Effectiveness of high-dose influenza vaccine against hospitalisations in older adults (FLUNITY-HD): an individual-level pooled analysis.
Johansen ND, Modin D, Pardo-Seco J, Rodriguez-Tenreiro-Sánchez C, Loiacono MM, Harris RC, Dufournet M, van Aalst R, Chit A, Larsen CS, Larsen L, Wiese L, Dalager-Pedersen M, Claggett BL, Janstrup KH, Duran-Parrondo C, Piñeiro-Sotelo M, Cribeiro-González M, Conde-Pájaro M, Mirás-Carballal S, González-Pérez JM, Solomon SD, Sivapalan P, Martel CJ, Jensen JUS, Martinón-Torres F, Biering-Sørensen T, DANFLU-2 Study Group, GALFLU Trial Team
The relative effectiveness of a high-dose quadrivalent influenza vaccine versus standard-dose quadrivalent influenza vaccines in older adults in France: a retrospective cohort study during the 2021-2022 influenza season.
Bricout H, Levant MC, Assi N, Crépey P, Descamps A, Mari K, Gaillat J, Gavazzi G, Grenier B, Launay O, Mosnier A, Raguideau F, Watier L, Harris RC, Chit A
Frequent collaborators
- Scott Halperin and Joanne Langley: 111 shared papers
- Mark Loeb and Allison McGeer: 100 shared papers
- Melissa Andrew and Shelly McNeil: 73 shared papers
- Scott Halperin and Shelly McNeil: 71 shared papers
- Shelly McNeil and Joanne Langley: 70 shared papers
- Shelly McNeil and Allison McGeer: 55 shared papers
- Mark Loeb and Shelly McNeil: 50 shared papers
- Mark Loeb and Melissa Andrew: 44 shared papers
- Jeffrey Kwong and Allison McGeer: 44 shared papers
- Guy Boivin and Shelly McNeil: 36 shared papers
- Melissa Andrew and Allison McGeer: 36 shared papers
- Allison McGeer and Makeda Semret: 35 shared papers
- Joanne Langley and Allison McGeer: 34 shared papers
- Mark Loeb and Guy Boivin: 33 shared papers
- Guy Boivin and Melissa Andrew: 33 shared papers
- Shelly McNeil and Makeda Semret: 33 shared papers
- Melissa Andrew and Makeda Semret: 32 shared papers
- Allison McGeer and Louis Valiquette: 30 shared papers
- Joanne Langley and Seyed Moghadas: 29 shared papers
- Jane Heffernan and Iain Moyles: 24 shared papers
- Scott Halperin and Allison McGeer: 18 shared papers
- Allison McGeer and Anne McCarthy: 16 shared papers
- Mark Loeb and Louis Valiquette: 14 shared papers
- Guy Boivin and Louis Valiquette: 14 shared papers
- Jianhong Wu and Jane Heffernan: 13 shared papers
- Jeffrey Kwong and Christiaan Righolt: 12 shared papers
- David Champredon and Seyed Moghadas: 11 shared papers
- Scott Halperin and Todd Hatchette: 11 shared papers
- Mark Loeb and Philippe Lagacé-Wiens: 10 shared papers
- Guy Boivin and Philippe Lagacé-Wiens: 10 shared papers
- Melissa Andrew and Philippe Lagacé-Wiens: 10 shared papers
- Paul Grootendorst and Ayman Chit: 7 shared papers
- Scott Halperin and Jeffrey Kwong: 6 shared papers
- Joanne Langley and Ayman Chit: 6 shared papers
- Jianhong Wu and Ayman Chit: 6 shared papers
- Mark Loeb and Todd Hatchette: 5 shared papers
- Mark Loeb and Anne McCarthy: 5 shared papers
- Guy Boivin and Anne McCarthy: 5 shared papers
- Scott Halperin and Ayman Chit: 5 shared papers
- Melissa Andrew and Todd Hatchette: 5 shared papers
- Jianhong Wu and Seyed Moghadas: 5 shared papers
- Jane Heffernan and Seyed Moghadas: 5 shared papers
- Mark Loeb and Ayman Chit: 4 shared papers
- Guy Boivin and Ayman Chit: 4 shared papers
- Melissa Andrew and Ayman Chit: 4 shared papers
- Shelly McNeil and Ayman Chit: 4 shared papers
- Jeffrey Kwong and Nicholas Mitsakakis: 4 shared papers
- Allison McGeer and Ayman Chit: 4 shared papers
- Makeda Semret and Ayman Chit: 4 shared papers
- Ayman Chit and Louis Valiquette: 4 shared papers
- Paul Grootendorst and Jeffrey Kwong: 3 shared papers
- Paul Grootendorst and Allison McGeer: 3 shared papers
- Paul Grootendorst and Nicholas Mitsakakis: 3 shared papers
- Todd Hatchette and Ayman Chit: 3 shared papers
- Christiaan Righolt and Ayman Chit: 3 shared papers
- David Champredon and Joanne Langley: 2 shared papers
- Paul Grootendorst and Manny Papadimitropoulos: 2 shared papers
- Jeffrey Kwong and Ayman Chit: 2 shared papers
- Jane Heffernan and Ayman Chit: 2 shared papers
- Seyed Moghadas and Ayman Chit: 2 shared papers
- Christiaan Righolt and Philippe Lagacé-Wiens: 2 shared papers
- Nicholas Mitsakakis and Ayman Chit: 2 shared papers
- Philippe Lagacé-Wiens and Ayman Chit: 2 shared papers
- Ayman Chit and Manny Papadimitropoulos: 2 shared papers
- Mark Loeb and Gregory Taylor: 1 shared paper
- David Champredon and Nicholas Mitsakakis: 1 shared paper
- David Champredon and Ayman Chit: 1 shared paper
- Guy Boivin and Gregory Taylor: 1 shared paper
- Scott Halperin and Gregory Taylor: 1 shared paper
- Scott Halperin and Manny Papadimitropoulos: 1 shared paper
- Joanne Langley and Evelyn Forget: 1 shared paper
- Jianhong Wu and Iain Moyles: 1 shared paper
- Anne McCarthy and Ayman Chit: 1 shared paper
- Gregory Taylor and Ayman Chit: 1 shared paper
- Iain Moyles and Ayman Chit: 1 shared paper
- Evelyn Forget and Ayman Chit: 1 shared paper
- Department of Pediatrics
- Status
- Department of Medicine
- Department of Economics
- Department of Community Health and Epidemiology
- Department of Laboratory Medicine & Pathobiology
- Centre de recherche en infectiologie
- Other
Co-authors at University of Toronto, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.
Edward Thommes
Mathematical and Physical Sciences, Department of Mathematics & Statistics
16 shared papers, latest 2025
Salaheddin Mahmud
Community Health Sciences
15 shared papers, latest 2025
Paul Grootendorst
Department of Economics
7 shared papers, latest 2023
Jianhong Wu
Faculty
6 shared papers, latest 2021
Joanne Langley
Department of Community Health and Epidemiology
6 shared papers, latest 2019
Scott Halperin
Department of Pediatrics
5 shared papers, latest 2019
Louis Valiquette
Département de microbiologie et d'infectiologie
4 shared papers, latest 2019
Mark Loeb
Department of Pathology and Molecular Medicine
4 shared papers, latest 2019
Guy Boivin
Centre de recherche en infectiologie
4 shared papers, latest 2019
Melissa Andrew
Division of Geriatric Medicine
4 shared papers, latest 2019
Shelly McNeil
Department of Pediatrics
4 shared papers, latest 2019
Melissa Andrew
Department of Neurology and Neurosurgery
4 shared papers, latest 2019
Allison McGeer
Department of Laboratory Medicine & Pathobiology
4 shared papers, latest 2019
Melissa Andrew
Department of Medicine
4 shared papers, latest 2019
Janet McElhaney
Faculty
4 shared papers, latest 2019
Makeda Semret
Department of Medicine
4 shared papers, latest 2019
Todd Hatchette
Department of Pediatrics
3 shared papers, latest 2019
Christiaan Righolt
Department of Surgery
3 shared papers, latest 2025
Manny Papadimitropoulos
Status
2 shared papers, latest 2015
Jane Heffernan
Mathematics & Statistics
2 shared papers, latest 2020
Seyed Moghadas
Mathematics and Statistics
2 shared papers, latest 2018
Nicholas Mitsakakis
Biostatistics Division
2 shared papers, latest 2020
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Profile data last refreshed on September 29, 2026 from the university directory, publication records and public research funding records.