Ключевые слова: advertising, advice, care, clip art, conceptual, contagious, crisis, dangerous, diagnosis, disease, distance, epidemic, feet, flu, global, graphic, hazard, health, health care, healthcare, hospital, hygiene, infection, infectious, information, instruction, isolated, isolation, length, measure, medicine, message, outbreak, pandemic, prevention, problem, research, risk, rules, safety, signboard, spread, spreading, textured, treatment, vaccination, vaccine, virus,