Ключевые слова: background, bacteria, bacterium, biology, cell, cells, close, closeup, disease, dna, embryo, epidemic, flowing, focus, genetics, health, hiv, human, ill, illness, illustration, infection, light, macro, many, medical, medicine, micro, microbiology, microscopic, molecules, organism, outbreak, parasite, patient, research, scanning, science, scientific, selective, shape, sick, sickness, small, spread, technology, therapy, vein, virus,