Ключевые слова: 1, advice, boy, care, caution, concept, conceptual, contagious, coronavirus, covid19, crisis, danger, disease, distance, distancing, epidemic, flu, health, human, hygiene, icon, illness, illustration, infected, infection, infectious, instruction, man, message, meter, metre, one, pandemic, people, person, prevention, problem, protective, risk, rules, safety, sign, silhouette, social, stop, symbol, virus, warning,