Ключевые слова: 3d, aids, antibiotics, background, bacteria, bacterium, biology, blood, cancer, cell, cells, concept, covid 19, disease, epidemic, fever, flu, germ, h1n1, health, hiv, human, illness, illustration, infection, macro, medical, medicine, micro, microbe, microbiology, microscope, microscopic, molecules, organism, outbreak, pandemic, pathogen, prevention, science, scientific, sickness, viral, virology, virus,