Faculty profile

Allison McGeer

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ProfessorDepartment of Laboratory Medicine and PathobiologyUniversity of Toronto

Allison McGeer

Professor

Department of Laboratory Medicine and Pathobiology

Temerty Faculty of Medicine

University of Toronto

Toronto, Ontario, Canada

Scholar ORCID

Supervision signals

Professors usually supervise graduate students in their department's programs.
128 publications in the last five years, latest in 2026.
Senior (last) author on 19 recent papers, a sign of leading a research group.
Principal investigator on 22 research grants (22 CIHR), most recently in 2025.
Supervised 3 trainees who won CIHR awards, most recently in 2011.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

313

Publications

7,684

Citations

h-index

262

Collaborators

Grants

Publications by year

Counts cover the works listed on the university profile; citation counts come from Dimensions.

Education

Profiles and links

University Profile Google Scholar iDORCID

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Signals and details

Research

Read how they describe their research on their University of Toronto profile.

Covid-19 Epidemiology Transmission Antibiotic Resistance Clinical Trial Mathematical Modeling Prospective Cohort Vaccine Effectiveness

Latest papers

Genomic and epidemiological identification of Pseudomonas aeruginosa transmission chains and in hospital ICUs.
Genome biology · 2026
Post-licensure safety of nirsevimab from the Canadian National Vaccine Safety (CANVAS) network.
Human vaccines & immunotherapeutics · 2026
The spectrum of copy number variation in the Pan-Canadian HostSeq databank.
PloS one · 2026

All 313 publications

Latest funding

Investigating the genomic epidemiology, transmission, and infectivity of the non-influenza respiratory viruses
CIHR · 2025 · Principal investigator
$722,925
CAMP 2.0 An Ongoing Community-based Interdisciplinary Model for Mpox pandemic Preparedness
CIHR · 2025 · Principal investigator
$350,000
Avian influenza suRveillance in Companion animal and Human healthcare settings [ARCH]
CIHR · 2024 · Co-investigator
$150,000

All 73 grants and awards

From the 150 most recent of 313 publications.

Genomic and epidemiological identification of Pseudomonas aeruginosa transmission chains and in hospital ICUs.

Graña-Miraglia L, Hu X, Volling C, Mataseje L, Mulvey MR, McGeer A, Guttman DS, Toronto Invasive Bacterial Diseases Network (TIBDN)

Genome biology2026

DOI: 10.1186/s13059-026-04005-1 PMID: 41721420

Post-licensure safety of nirsevimab from the Canadian National Vaccine Safety (CANVAS) network.

Viñeta Paramo M, Kiely M, Valiquette L, Muller MP, McGeer A, Isenor JE, Sadarangani M, Kellner JD, Vanderkooi OG, Marty K, Lavoie PM, Bettinger JA

Human vaccines & immunotherapeutics2026

DOI: 10.1080/21645515.2026.2658377 PMID: 42048598

The spectrum of copy number variation in the Pan-Canadian HostSeq databank.

Aujla N, Thiruvahindrapuram B, Casalino S, Frangione E, Mahajan R, Di Iorio D, Fung CYJ, Jayachandran L, MacDonald G, Morgan G, Wolday D, Young J, Arshad M, Clausen M, Arnoldo S, Binnie A, Borgundvaag B, Chowdhary S, Dagher M, Devine L, Friedman SM, Gingras AC, Goneau LW, Khan Z, Lapadula E, Mazzulli T, McGeer A, McLeod S, Mighton C, Pugh TJ, Richardson D, Simpson J, Stern S, Taher A, Strug L, Bombard Y, Faghfoury H, Greenfeld E, CGEn HostSeq Initiative, Scherer SW, Taher J, Noor A, Lerner-Ellis J

PloS one2026

DOI: 10.1371/journal.pone.0359210 PMID: 42789588

Safety of COVID-19 and influenza vaccines in children and adolescents with immunocompromised or autoimmune conditions: Findings from the Canadian National Vaccine Safety (CANVAS) network.

Turner C, Vanderkooi OG, Kellner JD, Shulha HP, Muller MP, Sadarangani M, Isenor JE, Marty K, Soe P, Kiely M, Valiquette L, McGeer A, Bettinger JA

Human vaccines & immunotherapeutics2026

DOI: 10.1080/21645515.2026.2664323 PMID: 42053343

Antibiotics for Delirium in Older Adults With No Clear Urinary Tract Infection: A Multicentre, Pragmatic, Randomized Trial-Vanguard Results.

Fralick M, Stall NM, Zorcic K, Reppas-Rindlisbacher C, Kaplovitch E, Li AS, MacFadden DR, Kobewka D, Castellani L, Parsons P, McGeer A, McCready J, Lim B, Hodzic-Santor E, Kandel C, A‐DONUT Study Team

Journal of the American Geriatrics Society2026

DOI: 10.1111/jgs.70480 PMID: 42175687

Early COVID-19 and Severity of Subsequent Omicron Infection in Ontario Canada.

Kassee C, Shigayeva A, Kandel C, Farooqi L, Zhong Z, Gingras AC, Coleman BL, Gilbert L, Gold WL, Major M, Mazzulli T, Mubareka S, Valluri SR, Martin C, Kyaw MH, McLaughlin JM, McGeer A

Influenza and other respiratory viruses2026Senior author

DOI: 10.1111/irv.70197 PMID: 41527184

mRNA COVID-19 vaccine safety in adults from the Canadian national vaccine safety network.

Muller MP, Soe P, Shulha HP, Isenor JE, Valiquette L, Sadarangani M, Vanderkooi OG, Kellner JD, Top KA, De Serres G, McGeer A, Kiely M, Marty K, Irvine M, Bettinger JA, Canadian Immunization Research Network

Vaccine2026

DOI: 10.1016/j.vaccine.2026.128630 PMID: 42092317

Invasive pneumococcal disease surveillance in Canada, 2023.

Golden A, Griffith A, Lefebvre B, McGeer A, Tyrrell G, Kus J, Grant J, Minion J, Van Caeseele P, Desnoyers G, Haldane D, Yu Y, Ding X, Steven L, McFadzen J, Zhanel G, Primeau C, Martin I

Canada communicable disease report = Releve des maladies transmissibles au Canada2026

DOI: 10.14745/ccdr.v52i0102a05 PMID: 41924395

Dominance of the ST20 stG62647 Lineage Among Invasive Streptococcus dysgalactiae subsp. equisimilis Infections in Toronto, Canada.

Gauvin K, Li K, Hsu F, McGeer A, Fittipaldi N

Microorganisms2026

DOI: 10.3390/microorganisms14040878 PMID: 42075275

Prevalence of and risk factors for antimicrobial resistance in pneumococcal disease in southern Ontario during the PCV13 era.

Shigayeva A, Coleman BL, Golden AR, Martin I, Zhanel G, Adam H, Gold WL, Kandel C, Katz KC, Krajden S, Lovinsky R, Muller MP, Ostrowska K, Rau N, Ricciuto D, Richardson D, Vermeiren C, Faheem A, Farooqi L, Green K, Hassan K, Lefebvre M, Li AX, Malik N, Nayani S, Pejkovska M, Plevneshi A, Sultana A, Vikulova T, Zhong Z, McGeer A, Toronto Invasive Bacterial Diseases Network

Vaccine2026Senior author

DOI: 10.1016/j.vaccine.2026.128351 PMID: 41785682

Investigating the genomic epidemiology, transmission, and infectivity of the non-influenza respiratory viruses

Principal investigatorCIHR2025Project Grant

Principal investigators: Kozak, Robert A; McGeer, Allison J

Keywords: Nosocomial Outbreaks; Respiratory Viruses; Rna Viruses; Transmission; Whole Genome Sequencing

$722,925

CAMP 2.0 An Ongoing Community-based Interdisciplinary Model for Mpox pandemic Preparedness

Principal investigatorCIHR2025Team Grant: Monkeypox Rapid Research Response - Extension

Principal investigators: Tan, Darrell H; Adebajo, Sylvia; Audu, Rosemary; Chan, Adrienne; DAODU, OLUWAFEMI B; Klein, Marina B; Kozak, Robert A; Kwong, Jeffrey C; McGeer, Allison J; Mishra, Sharmistha; Okpokoro, Evaezi; Olufadewa, Isaac I; Walmsley, Sharon L

Keywords: Clinical Trial; Epidemiology; Mathematical Modeling; Prospective Cohort; Vaccine Effectiveness; Veterinary Medecine; Virology

$350,000

Avian influenza suRveillance in Companion animal and Human healthcare settings [ARCH]

Co-investigatorCIHR2024Catalyst Grant: Avian Influenza OneHealth Research

Principal investigators: Fralick, Michael P; Hug, Laura A; Kassen, Rees; MacFadden, Derek R; Nott, Caroline; Wong, Alex

Keywords: Animal Shelters; Avian Influenza A; Environmental Surface Surveillance; H5n1; Hospitals; One Health; Pandemic Surveillance; Veterinary Clinics; Whole Genome Sequencing; Wildlife Rehabilitation

$150,000

Engaging communities at high risk of H5N1: a survey to inform surveillance and outbreak response

Co-investigatorCIHR2024Catalyst Grant: Avian Influenza OneHealth Research

Principal investigators: Bolotin, Shelly

Keywords: Avian Influenza; Knowledge, Attitudes, Beliefs; Pandemic Preparedness; Rural Health; Surveillance; Zoonotic Diseases

$149,740

Viral Dynamics of Influenza, RSV and SARS-CoV-2 in Children and Secondary Transmission within Households and Schools

Co-investigatorCIHR2023Project Grant

Principal investigators: Science, Michelle E; Campigotto, Aaron J

Keywords: Household Infection Transmission; Influenza; Rsv; Sars-Cov-2; School Infection Transmission; Viral Respiratory Infections

$1,113,076

Hospital characteristics and Adverse event Rate Measurements (HARM) Evaluated over 21 years.

Co-investigatorCIHR2023Project Grant

Principal investigators: Tomlinson, George A; Parshuram, Christopher S

Keywords: Administrative Data; Adverse Events; Cihi; Healthcare Associated Harm

$457,470

Investigating the genomic epidemiology, transmission, and infectivity of the non-influenza respiratory viruses

Principal investigatorCIHR2023Project Grant - PA: Pandemic Preparedness and Health Emergencies Research

Principal investigators: Kozak, Robert A; McGeer, Allison J

Keywords: Infectivity; Long-Term Care; Nosocomial Outbreaks; Respiratory Viruses; Rna Viruses; Transmission; Whole-Genome Sequencing

$100,000

A pragmatic randomized trial to evaluate the effect of a peer-comparison feedback letter on antimicrobial use in hospital-based physicians

Co-investigatorCIHR2023Project Grant

Principal investigators: Razak, Fahad; Daneman, Nick; Desveaux, Laura; Ivers, Noah M; McIntyre, Mark; Morris, Andrew M; Schwartz, Kevin L; Taljaard, Monica; Verma, Amol

Keywords: Antimicrobial Resistance; Antimicrobial Stewardship; Inpatient Care; Peer-Comparison Feedback Reporting; Pragmatic Randomized Trial

$634,949

A pragmatic randomized trial to evaluate the effect of a peer-comparison feedback letter on antimicrobial use in hospital-based physicians

Co-investigatorCIHR2023Project Grant - PA: ECR Antimicrobial Resistance Multi-Year Grant

Principal investigators: Razak, Fahad; Desveaux, Laura; Ivers, Noah M; McIntyre, Mark; Morris, Andrew M; Schwartz, Kevin L; Taljaard, Monica; Verma, Amol

Keywords: Antimicrobial Resistance; Antimicrobial Stewardship; Inpatient Care; Peer-Comparison Feedback Reporting; Pragmatic Randomized Trial

$300,000

Assessing mpox virus susceptibility, transmission, host immune responses, and virus evolution in key Canadian livestock species

Co-investigatorCIHR2023Team Grant: Mpox (monkeypox) and zoonotic threats - Ecological and zoonotic pool

Principal investigators: Kozak, Robert A; Facciuolo, Antonio

Keywords: Agricultural Reservoir; Environmental Contamination; Food Production; Host Response; Immune Response; Livestock; Reverse Zoonosis; Transmission; Viral Evolution; Viral Pathogenesis

$498,000

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Profile data last refreshed on September 25, 2026 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Allison McGeer

Research

Latest papers

Latest funding

Genomic and epidemiological identification of Pseudomonas aeruginosa transmission chains and in hospital ICUs.

Post-licensure safety of nirsevimab from the Canadian National Vaccine Safety (CANVAS) network.

The spectrum of copy number variation in the Pan-Canadian HostSeq databank.

Safety of COVID-19 and influenza vaccines in children and adolescents with immunocompromised or autoimmune conditions: Findings from the Canadian National Vaccine Safety (CANVAS) network.

Antibiotics for Delirium in Older Adults With No Clear Urinary Tract Infection: A Multicentre, Pragmatic, Randomized Trial-Vanguard Results.

Early COVID-19 and Severity of Subsequent Omicron Infection in Ontario Canada.

mRNA COVID-19 vaccine safety in adults from the Canadian national vaccine safety network.

Invasive pneumococcal disease surveillance in Canada, 2023.

Dominance of the ST20 stG62647 Lineage Among Invasive Streptococcus dysgalactiae subsp. equisimilis Infections in Toronto, Canada.

Prevalence of and risk factors for antimicrobial resistance in pneumococcal disease in southern Ontario during the PCV13 era.

Frequent collaborators

Mark Loeb

Samira Mubareka

Jennie Johnstone

Tony Mazzulli

Nick Daneman

Anne-Claude Gingras

Nahuel Fittipaldi

Manish Sadarangani

Makeda Semret

Anne McCarthy

Andrew Simor

Deborah Yamamura

Dominik Mertz

Robert Kozak

Nisha Thampi

Gaston De Serres

Irene Armstrong

Beate Sander

Jonathan Gubbay

Janet Raboud

Guy Boivin

Gregory Tyrrell

Julianne Kus

Bryan Coburn

Michelle Science

Fiona Smaill

Robert Fowler

Francois Lamontagne

Sharmistha Mishra

Marek Smieja

Dawn Bowdish

Robert Maunder

Jennifer Tsang

Jordan Lerner-Ellis

Murray Krahn

Nadine Shehata

Ryan Zarychanski

Mario Ostrowski

Yang Liu

Bradley Langford