Ключевые слова: alert, bacteria, biohazard, blank, blur, care, caution, city, concept, control, copy space, corona, coronavirus, covid, covid19, disease, empty, epidemic, evening, global, health, icon, idea, illness, infected, infection, medical, modern, morning, mountain, ncov, novel, office, outbreak, pandemic, pathogen, plate, risk, rock, sign, skyline, skyscraper, stone, stop, sunrise, sunset, symbol, tower, twilight, urban, vaccine, virus,