Ключевые слова: 19, black, board, calligraphy, centers, chalk, concept, coronavirus, council, covid, crete, cure, disease, education, epidemic, he drew, healing, icon, ill, injection, investigation, marketing, medicine, message, new, nurse, omicron, pandemic, plan, remedy, school, sign, speculation, stop, symbol, syringe, to write, vaccination, vaccine, variant, virus, white, written,