Ключевые слова: adult, bacterium, biochemistry, biologist, biology, biotechnology, chemical, chemistry, clean suit, clinical, contagious, corona, coronavirus, covid19, danger, development, diagnostic, disease, doctor, emergency, epidemic, epidemiology, female, flu, germ, glassware, health, hospital, illness, indoors, infection, laboratory, mask, medicine, microbiology, pandemic, pharmacology, portrait, prevention, protective, research, risk, sars, science, scientist, virus, woman,