Ключевые слова: access, accident, attention, background, banner, barricade, barrier, black, caution, construction, corona, coronavirus, covid19, crime, criminal, cross, danger, disease, epidemic, flu, forbidden, home, illustration, infection, isolated, isolation, law, line, pandemic, police, protection, quarantine, restricted, restriction, ribbon, risk, safety, scene, security, self isolation, sign, stop, stripe, symbol, tape, urban, virus, warning, woman, yellow,