Ключевые слова: 19, adult, analysis, background, blood, blue, care, clinic, closeup, copy, corona, coronavirus, covid, covid19, diagnostic, doctor, epidemic, female, glass, gloves, hand, health, hematology, holding, hospital, illness, immunology, label, laboratory, light, medic, medical, medicine, nurse, pandemic, person, protective, research, sample, science, scientist, space, test, text, treatment, tube, virus, woman, worker,