travel safely on public transport. young man with kn95 ffp2 face mask looking through train window. train passenger with

bus business businessman casual caucasian city commuter commuting corona coronavirus covid19 distancing early evening face guy kn95 looking male man mask metro mobility morning new night normal pandemic passenger people person portrait protective public railroad ride safely seat shirt sitting social through train tram tramway transport transportation travel urban virus window young asymptomatic crisis curfew high alert increase cases infected isolated lockdown outbreak positive quarantine safe second wave shutdown spreads state of calamity symptomatic symptoms vaccine