Ключевые слова: action, alone, antiviral, blackboard, cardboard, chalkboard, community, concept, contagious, cough, cubes, danger, dangerous, decision, disease, disorder, distance, doctor, epidemic, fear, flu, font, gesture, global, hand, health, hold, hygiene, infection, letter, lettering, medical, medicine, pandemic, person, quarantine, safety, sars, sign, social, symbols, vaccine, virus, wood, world,