Ключевые слова: allergen, background, bacteria, biohazard, concept, contagion, coronaviridae, covid19, dangerous, deadly, death, detail, disease, element, epidemic, face, first aid, health, human, illness, incubation, infect, infection, inflammation, macro, mask, medicine, object, orange, outbreak, pandemic, pathogen, pink, pneumonia, protective, quarantine, respiratory, risk, sars, sick, surgical, syndrome, vaccine, viral, virus, white,