Ключевые слова: abstract, anatomy, background, bacterium, biology, blood, body, cancer, cell, concept, danger, design, disease, epidemic, fever, flu, germ, health, healthcare and medicine, horizontal, human, hygiene, illness, illustration, immune, infection, life, macro, magnification, medical, medicine, micro organism, microbe, microbiology, microorganism, microscope, microscopic, mobile phone, molecular, molecule, organic, organism, pathogen, research, science, scientific, system, the human body, viral, virus,