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Abigail Kroch

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Assistant ProfessorEpidemiology DivisionUniversity of Toronto

Abigail Kroch

Assistant Professor

Epidemiology Division

Dalla Lana School of Public Health

University of Toronto

Toronto, Ontario, Canada

Supervision signals

Professors usually supervise graduate students in their department's programs.
16 publications in the last five years, latest in 2026.
Principal investigator on 2 research grants (2 CIHR), most recently in 2024.

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.

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Grants

Publications by year

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

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Signals and details

Research

Epidemiology Administrative Data Antiretroviral Therapy Cohort Studies Hiv Prevention And Care Cascade Knowledge Mobilization Phylogenetics Pre-Exposure Prophylaxis

Latest papers

Uptake of Influenza, Pneumococcal, and COVID-19 Vaccines Among People Living with HIV: Findings from the Ontario HIV Treatment Network Cohort Study
AIDS and Behavior · 2026
Correlates of Using Medically-Authorized Cannabis in a Large Cohort of People Living with HIV Who Use Cannabis
AIDS and Behavior · 2025
The evolving HIV epidemic in Ontario, Canada: A retrospective analysis of new HIV diagnoses to identify subpopulations with persistent risk of HIV transmission
Canadian Journal of Public Health · 2025 · first author

All 22 publications

Latest funding

W-PREV: Integrating Precision Medicine and Feminist Principles for Comprehensive Women's Sexual Health Promotion and HIV/STBBI Prevention in Ontario
CIHR · 2024 · Co-investigator
$20,000
Serving those left behind: Developing a precision approach to PrEP and ART delivery in Ontario
CIHR · 2024 · Principal investigator
$20,000
CIHR Pan-Canadian Network for HIV/AIDS and Sexually Transmitted and Blood Borne Infections (STBBI) Clinical Trials Research (CTN)
CIHR · 2024 · Co-investigator
$25,000,000

All 5 grants and awards

22 publications.

Uptake of Influenza, Pneumococcal, and COVID-19 Vaccines Among People Living with HIV: Findings from the Ontario HIV Treatment Network Cohort Study

Chambers C, Bekele T, Grewal R, Kovacs C, Mbuagbaw L, Ndung’u M, Record D, Wilson SE, Kroch A, Burchell AN

AIDS and Behavior2026

DOI: 10.1007/s10461-026-05237-9

Correlates of Using Medically-Authorized Cannabis in a Large Cohort of People Living with HIV Who Use Cannabis

Coelho SG, Wardell JD, Kroch A, Rueda S

AIDS and Behavior20254 citations

DOI: 10.1007/s10461-024-04568-9

The evolving HIV epidemic in Ontario, Canada: A retrospective analysis of new HIV diagnoses to identify subpopulations with persistent risk of HIV transmission

Kroch A, Gogolishvili D, O’Brien K, Orser L, Woodward K, Tharao W, Lazzam D, Burress K, Kabahenda M, Loutfy M

Canadian Journal of Public Health20253 citationsFirst author

DOI: 10.17269/s41997-025-00997-8

Sex differences in COVID-19 vaccine confidence in people living with HIV in Canada.

Lu J, Vulesevic B, Burchell AN, Singer J, Needham J, Yang Y, Qian H, Chambers C, Samji H, Colmegna I, Del Canto S, Godin GH, Habanyama M, Hui SSC, Kroch A, Mandarino E, Margolese S, Martin C, Owino M, Lau E, Mohammadi T, Zhang W, Pelaez S, Kovacs C, Benko E, Cooper CL, Anis AH, Costiniuk CT, COVAXHIV Study Group

Vaccine: X2024

DOI: 10.1016/j.jvacx.2024.100566 PMID: 39582795

Targeted HIV Self-Testing Identifies Persons with Undiagnosed HIV and Active Engagement Links them to Care: The GetaKit Study.

O'Byrne P, Kroch A, Orser L, Ho N, Musten A, Haines M, Lindsay J

AIDS and behavior2024

DOI: 10.1007/s10461-024-04302-5 PMID: 38526637

Testing for extragenital Neisseria gonorrhoeae and Chlamydia trachomatis: At-home pharyngeal and rectal self-swabs are non-inferior to those completed in healthcare settings.

Orser L, Tran V, O'Byrne P, Kroch A, Bonnetsmueller M, Hasso M, Musten A

PloS one2024

DOI: 10.1371/journal.pone.0302785 PMID: 38768150

HIV care cascade for women living with HIV in the Greater Toronto Area versus the rest of Ontario and Canada.

Medeiros P, Warren L, Kazemi M, Massaquoi N, Smith S, Tharao W, Serghides L, Logie CH, Kroch A, Burchell AN, de Pokomandy A, Kaida A, Loutfy M, CHIWOS Research Team

International journal of STD & AIDS2023

DOI: 10.1177/09564624221108034 PMID: 36411243

Effectiveness of COVID-19 vaccines in people living with HIV in British Columbia and comparisons with a matched HIV-negative cohort: a test-negative design.

Fowokan A, Samji H, Puyat JH, Janjua NZ, Wilton J, Wong J, Grennan T, Chambers C, Kroch A, Costiniuk CT, Cooper CL, Burchell AN, Anis A, COVAXHIV study team

International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases2023

DOI: 10.1016/j.ijid.2022.11.035 PMID: 36462571

Estimation of the population size of gay, bisexual and other men who have sex with men in Canada, 2020.

Sorge J, Colyer S, Cox J, Kroch A, Lachowsky N, Popovic N, Yang Q

Canada communicable disease report = Releve des maladies transmissibles au Canada2023

DOI: 10.14745/ccdr.v49i1112a02 PMID: 38504876

COVID-19 vaccine effectiveness by HIV status and history of injection drug use: a test-negative analysis.

Puyat JH, Wilton J, Fowokan A, Janjua NZ, Wong J, Grennan T, Chambers C, Kroch A, Costiniuk CT, Cooper CL, Lauscher D, Strong M, Burchell AN, Anis A, Samji H, COVAXHIV Study Team

Journal of the International AIDS Society2023

DOI: 10.1002/jia2.26178 PMID: 37885156

W-PREV: Integrating Precision Medicine and Feminist Principles for Comprehensive Women's Sexual Health Promotion and HIV/STBBI Prevention in Ontario

Co-investigatorCIHR2024Team Gr.: Embracing Diversity Achieve Prec./Health Equity-HIV/AIDS/STBBI-PHP-LOI

Principal investigators: Loutfy, Mona R; Bannerman, Molly; Kennedy, V Logan; Underhill, Angela A

Keywords: Feminist Precision Medicine; Hiv; Intersectional Feminism; Models Of Care; Ontario; Prevention; Sexual Health; Stbbi; Women

$20,000

Serving those left behind: Developing a precision approach to PrEP and ART delivery in Ontario

Principal investigatorCIHR2024Team Gr.: Embracing Diversity Achieve Prec./Health Equity-HIV/AIDS/STBBI-PHP-LOI

Principal investigators: Tan, Darrell H; Kroch, Abigail; Mishra, Sharmistha

Keywords: Administrative Data; Antiretroviral Therapy; Cohort Studies; Epidemiology; Hiv Prevention And Care Cascade; Knowledge Mobilization; Phylogenetics; Pre-Exposure Prophylaxis; Qualitative Research; Social Network Analysis

$20,000

CIHR Pan-Canadian Network for HIV/AIDS and Sexually Transmitted and Blood Borne Infections (STBBI) Clinical Trials Research (CTN)

Co-investigatorCIHR2024HIV/AIDS & STBBI Clinical Trials Research Network - Phase 1

Principal investigators: Klein, Marina B; Habanyama, Muluba; Mandarino, Enrico; Martin, Carrie; Angel, Jonathan B; Anis, Aslam H; Brophy, Jason C; Burchell, Ann N; Coffin, Carla S; Costiniuk, Cecilia T; Daley, Peter; Durand, Madeleine; Fontaine, Guillaume; Golchi, Shirin; Grennan, Jonathan (Troy); Hart, Trevor A; Hull, Mark W; Keynan, Yoav; King, Elizabeth M; Kronfli, Nadine; Law, John Lok Man; Lebouché, Bertrand; Logie, Carmen; Mbuagbaw, Lawrence C; McGuinty, Michaeline; Murray, Melanie C; Shaw, Souradet Y; Smyth, Daniel J; Spence, Cara J; Tan, Darrell H; Walmsley, Sharon L; Wong, Alexander C; Worthington, Catherine A; Zhabokritsky, Alice

Keywords: Clinical Trials; Community Engaged; Cure; Hepatitis B And C; Hiv/Aids; Network; Prevention; Sexually Transmitted And Blood Borne Infections; Syphilis; Treatment

$25,000,000

Understanding the Outcomes of Implementing Online HIV and COVID Self-Testing during the COVID-19 Pandemic: The GetaKit Study

Co-investigatorCIHR2021O. Gr.: Addr. the Health Impacts of COVID-19 - Imp. of def/disp care on health

Principal investigators: O'Byrne, Patrick

Keywords: Covid; Getakit; Hiv; Self-Testing

$47,466

Burden of COVID-19 among people living with HIV in Ontario

Principal investigatorCIHR2020Operating Grant: COVID-19 - Project Grant

Principal investigators: Burchell, Ann N; Cooper, Curtis L; Kroch, Abigail; Langlois, Marc-Andre

Keywords: Burden Of Disease; Covid-19; Data Linkage; Epidemiology; Health Service; Hiv/Aids; Immunity; Prospective Cohort; Seroepidemiologic Studies; Seroprevalence

$768,825

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 July 30, 2025 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Abigail Kroch

Research

Latest papers

Latest funding

Uptake of Influenza, Pneumococcal, and COVID-19 Vaccines Among People Living with HIV: Findings from the Ontario HIV Treatment Network Cohort Study

Correlates of Using Medically-Authorized Cannabis in a Large Cohort of People Living with HIV Who Use Cannabis

The evolving HIV epidemic in Ontario, Canada: A retrospective analysis of new HIV diagnoses to identify subpopulations with persistent risk of HIV transmission

Sex differences in COVID-19 vaccine confidence in people living with HIV in Canada.

Targeted HIV Self-Testing Identifies Persons with Undiagnosed HIV and Active Engagement Links them to Care: The GetaKit Study.

Testing for extragenital Neisseria gonorrhoeae and Chlamydia trachomatis: At-home pharyngeal and rectal self-swabs are non-inferior to those completed in healthcare settings.

HIV care cascade for women living with HIV in the Greater Toronto Area versus the rest of Ontario and Canada.

Effectiveness of COVID-19 vaccines in people living with HIV in British Columbia and comparisons with a matched HIV-negative cohort: a test-negative design.

Estimation of the population size of gay, bisexual and other men who have sex with men in Canada, 2020.

COVID-19 vaccine effectiveness by HIV status and history of injection drug use: a test-negative analysis.

W-PREV: Integrating Precision Medicine and Feminist Principles for Comprehensive Women's Sexual Health Promotion and HIV/STBBI Prevention in Ontario

Serving those left behind: Developing a precision approach to PrEP and ART delivery in Ontario

CIHR Pan-Canadian Network for HIV/AIDS and Sexually Transmitted and Blood Borne Infections (STBBI) Clinical Trials Research (CTN)

Understanding the Outcomes of Implementing Online HIV and COVID Self-Testing during the COVID-19 Pandemic: The GetaKit Study

Burden of COVID-19 among people living with HIV in Ontario

Frequent collaborators

Catharine Chambers

Mona Loutfy

Hasina Samji

Hasina Samji

Ramandip Grewal

Lawrence Mbuagbaw

Jason Wong

Deborah Kelly

Patrick O'Byrne

Carrie Martin

Réjean Thomas

Darren Lauscher

Robert Hogg

Marek Smieja

Carrie Martin

Aslam Anis

Beth Rachlis

Marina Klein

Sandra Pelaez

Shari Margolese

Wei Zhang

Tony Mazzulli

Fiona Smaill

Sharon Walmsley

Alexandra de Pokomandy

Ines Colmegna

Wangari Tharao

Wangari Tharao

Maureen Owino

Leigh McClarty

Notisha Massaquoi