Ключевые слова: 15, arrows, avoid, bus, caution, corona, coronavirus, disease, distance, elevator, epidemic, floor, flu, foot, footprint, guide, health, ill, illustration, infection, keep, lift, medical, metro, notice, outbreak, pandemic, person, prevention, print, protection, public, safety, shoe, social, spread, stamp, stand, sticker, stop, touch, vector image, virus, warning, zone,