Ключевые слова: abstract, aids, artery, background, bacterium, biology, blood, bloodstream, cancer, cell, cholesterol, chromosome, dna, epidemic, experiment, flowing, genetic, heart, herbal, hiv, hospital, human, illness, laboratory, medical, medicine, microbiology, microscope, molecule, mutation, organic, organism, people, pharmacy, poison, research, science, vaccination, vein, vessel, virus,