Ключевые слова: 3d, alert, backgrounds, barrier, barrier tape, biohazard, border, caution, caution tape, chair, closed, computer, concept, cordon, corona, corona crisis, coronavirus, covid, danger, distance, do not cross, entrance, epidemic, filter, health, home, illustration, infection, isolation, line, ncov, nobody, office, outdoor, pandemic, quarantine, render, safety, security, sign, social, stay, stop, symbol, table, tape, toning, urban, virus, warning,