Ключевые слова: adult, background, biology, caucasian, chemical, china, closeup, danger, dna, dripping, dropper, epidemic, fever, focus, genetic, gloves, hands, hazard, hematology, hospital, immunology, indoors, infection, laboratory, male, man, medicine, microbiology, outbreak, person, pharmaceutical, pipette, protective, quarantine, reagent, research, respiratory, safety, sample, scientist, suit, technology, test, tube, vaccine, virus, working, zika,