traveler woman wearing surgical mask at train station buying ticket online with her mobile phone outdoor

antibodies antiviral autumn booster business buying certificate city commuter coronavirus covid covid19 delta digital fall ffp2 girl glaxo green kn95 lockdown mask merck mobile monoclonal mutation new omicron online outdoor pandemic pass passenger passport people person phone pill plus protective quarantine sanitary smartphone station student surgical ticket tourism train transportation travel traveler university vaccination vaccine variant winter woman xevudy