Ключевые слова: alertness, aware, background, black, blank, care, caution, concept, coronavirus, covid19, cure, danger, disease, empty, exam, heading, health, health care, healthcare, healthy, help, illness, instruction, insurance, list, maintenance, makeup, medicine, message, notebook, notepad, pandemic, paper, place, precaution, prevent, prevention, preventive, protect yourself, protection, quarantine, sickness, sign, space, test, text, therapy, title, warning, word,