Roadside sign saying 'Please Stay Home' during the isolation of Covid-19 world pandemic; St. Albert, Alberta, Canada

horizontal road winter alberta protection outdoors day daytime isolation urban concept color colour global sign deserted roads roadway risk distance canada safety illness sickness universal transmission landscapes street disease reminder medical empty intervention healthcare separation signs spread prevention emergency behaviour virus streets crisis wintertime pandemic world wide plague roadways traffic light mandate blue sky snow outside nobody outdoor landscape park reminders infectious color image pandemics outbreak outbreaks infectious disease st albert colour image no one no people viral initiative quarantine pathogen contagion contagious disease contagious public health billboard billboards 2019 coronavirus covid 19 covid19 covid 19 novel coronavirus coronaviridae world pandemic infectious agent novel disease 2019 ncov acute respiratory disease novel coronavirus pneumonia wuhan pneumonia coronavirus disease 2019 public health emergency social distance social distancing physical distance physical distancing disease transmission distancing wuhan coronavirus severe acute respiratory syndrome coronavirus 2 mandates 2019 20 coronavirus pandemic public health emergency of international concern social isolation initiatives please stay home stay home stay in place shelter in place stay at home order movement control order shelter in place shelter in place warning