Ключевые слова: anatomy, antibody, bacillus, bacterium, biology, body, care, cell, clinic, diagram, dna, education, epidemic, flu, health, health care, healthy, human, illness, illustration, immune, immunology, infectious, influenza, isolated, laboratory, life, macro, medical, medicine, micro, microbe, microbiology, organism, pathogen, pathogenic, retrovirus, rna, scheme, schooling, science, scientific, shape, structure, symbol, system, vaccination, virion, virulent, virus,