Ключевые слова: analysis, blood, breakthrough, career, chemist, chemistry, covid, cure, disease, dna, doctor, expert, happiness, happy, healthcare, innovation, job, lab, laboratory, male, man, mask, medic, medical, medical research, medicine, modern, person, positive, professional, professionals, proud, research, risk, rna, safety, science, scientist, smile, smiling, success, test, testing, treatment, tube, vaccine, virus, work, worker, working,