sign on the road for direction to sunnybrook`s mobile health unit mhu

04272021 air avoidance building canada care city clinic contamination coronavirus covid danger department direction disease distancing efficiency epidemic equipment exterior face fear full health healthcare hospital illness impact infectious intensive issues lot mask measuring medical medicine mhu mobile ontario outdoors pandemic parking patient prevention problems protection protective purifier quarantine recovery risk road safety season sharing sign social spreading sunnybrooks supplies technical tent threats toronto unhygienic unit urgency vaccination vaccine virus worker