girl wearing a mask preventing contagion in a bus stop

alone avoid avoiding bad bus careful carefulness casual chemical city commuter commuting contagion contagious contamination coronavirus disease environment epidemic epidemy female flu gas girl infection influenza journey lady looking mask measure outbreak outside passenger people person pollution precaution preventing prevention preventive problem protect protection protective public safe single sitting smog station stop street student teen teenage teenager toxic transport travel traveler unhappy urban virus wait waiting warfare warming woman young