Examining the Association between Frailty and Antibody Neutralization of SARS-CoV-2: A Multisite Retrospective Cohort Study

Affiliations

• ¹ Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada; Centre for Integrated Care, St. Joseph's Health System, Hamilton, ON, Canada.
• ² McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada; Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada; Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada; McMaster Institute for Research on Aging, McMaster University, Hamilton, ON, Canada.
• ³ Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.
• ⁴ McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada; Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada; Department of Biochemistry & Biomedical Sciences, McMaster University, Hamilton, ON, Canada.
• ⁵ Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada; Department of Biochemistry & Biomedical Sciences, McMaster University, Hamilton, ON, Canada.
• ⁶ McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada; Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada; Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada; McMaster Institute for Research on Aging, McMaster University, Hamilton, ON, Canada; Firestone Institute of Respiratory Health, St Joseph's Healthcare, Hamilton, ON, Canada.
• ⁷ Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada; Centre for Integrated Care, St. Joseph's Health System, Hamilton, ON, Canada; Department of Medicine, Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada; McMaster Institute for Research on Aging, McMaster University, Hamilton, ON, Canada; Research Institute for Aging, Waterloo, ON, Canada. Electronic address: acosta@mcmaster.ca.