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机译:Protection from Omicron Infection in Residents of Nursing and Retirement Homes in Ontario, Canada
McMaster Immunology Research Center McMaster University;
Department of Health Research Methods Evidence and Impact McMaster University;
McMaster Institute for Research on Aging McMaster UniversityLunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital Sinai HealthHealth Sciences North Research InstituteDepartment of Medicine Michael G. DeGroote School of Medicine McMaster University;
COVID-19; hybrid immunity; mRNA vaccine; older adults; Omicron;