ArticleCMAJ open
Seropositivity and risk factors for SARS-CoV-2 infection in a South Asian community in Ontario: a cross-sectional analysis of a prospective cohort study.
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6 citing papers in PubMed.
- Disproportionate Rates of COVID-19 Among Black Canadian Communities: Lessons from a Cross-Sectional Study in the First Year of the Pandemic.Journal of racial and ethnic health disparities · 2025Article
- SARS-CoV-2 seroprevalence in Nova Scotia blood donors.Journal of the Association of Medical Microbiology and Infectious Disease Canada = Journal officiel de l'Association pour la microbiologie medicale et l'infectiologie Canada · 2024Article
- Factors associated with SARS-CoV-2 infection in unvaccinated children and young adults.BMC infectious diseases · 2024Article
- COVID-19 vaccine effectiveness among South Asians in Canada.PLOS global public health · 2024Article
- Cross-Canada Variability in Blood Donor SARS-CoV-2 Seroprevalence by Social Determinants of Health.Microbiology spectrum · 2023Article
- Article
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Authors and funding
23 authors.
Sonia S AnandDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont. anands@mcmaster.ca.
Corey ArnoldDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Shrikant I BangdiwalaDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Shelly BolotinDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Dawn BowdishDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Rahul ChanchlaniDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Russell J de SouzaDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Dipika DesaiDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Sujane KandasamyDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Farah KhanDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Zainab KhanDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Marc-André LangloisDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Jayneel LimbachiaDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Scott A LearDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Mark LoebDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Lawrence LohDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Baanu ManoharanDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Kiran NakkaDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Martin PelchatDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Zubin PunthakeeDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Karleen M SchulzeDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Natalie WilliamsDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Gita WahiDepartment of Medicine (Anand, Bowdish, Punthakee, Schulze, Williams), McMaster University; Population Health Research Institute (Anand, Bangdiwala, de Souza, Desai, F. Khan, Z. Khan, Limbachia, Punthakee), Hamilton, Ont.; Department of Biochemistry, Microbiology and Immunology (Arnold, Langlois, Nakka, Pelchat), University of Ottawa, Ottawa, Ont.; Department of Health Research Methods, Evidence and Impact (Bangdiwala, de Souza, Kandasamy, Loeb, Manoharan), McMaster University, Hamilton, Ont.; Public Health Ontario (Bolotin); Dalla Lana School of Public Health (Bolotin, Loh), University of Toronto, Toronto, Ont.; Department of Pediatrics (Chanchlani, Wahi), McMaster University, Hamilton, Ont.; Faculty of Health Sciences (Lear), Simon Fraser University, Vancouver, BC; Department of Pathology and Molecular Medicine (Loeb), McMaster University, Hamilton, Ont.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEarly in the COVID-19 pandemic, the South Asian community in the Greater Toronto Area (GTA) was identified as having risk factors for exposure and specific barriers to accessing testing and reliable health information, rendering them particularly vulnerable to SARS-CoV-2 infection. We sought to investigate the burden of SARS-CoV-2 infection among South Asian people in the GTA, and to characterize the demographic characteristics, risk perceptions and trusted sources of health information in this group.
methodsWe conducted a cross-sectional analysis from the baseline assessment of participants in a prospective cohort study. Participants from the GTA were enrolled from Apr. 14 to July 28, 2021. Seropositivity for antispike and antinucleocapsid antibodies was determined from dried blood spots, and estimates of seropositivity were age and sex standardized to the South Asian population in Ontario. Demographic characteristics, risk perceptions and sources of COVID-19 information were collected via questionnaire and reported descriptively.
resultsAmong the 916 South Asian participants enrolled (mean age 41 yr), the age- and sex-standardized seropositivity was 23.6% (95% confidence interval 20.8%-26.4%). Of the 693 respondents to the questionnaire, 228 (32.9%) identified as essential workers, and 125 (19.1%) reported living in a multigenerational household. A total of 288 (49.4%) perceived that they were at high COVID-19 risk owing to their geographic location, and 149 (34.3%) owing to their type of employment. The top 3 most trusted sources of information related to COVID-19 included health care providers and public health, traditional media sources and social media.
interpretationBy the third wave of the COVID-19 pandemic, about one-quarter of a sample of South Asian individuals in Ontario had serologic evidence of prior SARS-CoV-2 infection. Insight into factors that put certain populations at risk can help future pandemic planning and disease control efforts.
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COVID-19AdultCross-Sectional StudiesHumansOntarioPandemicsProspective StudiesRisk FactorsSARS-CoV-2
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