Department of Biological Sciences of Toronto Scarborough M1C 1A4;
Department of Genetics and Development Research Institute Health Network M5T 2S8;
Dalla Lana School of Public Health of Toronto M5T 3M7;
The University of Toronto and International Scientists Association of Toronto Scarborough M1C 1A4;
COVID-19; Infectious disease; Mental health; Living accommodation; ELEVATION; Population density;