Ключевые слова: art, bacteria, bacterium, biology, bug, cell, concept, contour, design, disease, element, flat, gray, human, icon, illness, immune, infection, isolated, logo, medical, medicine, membrane, micro, microbe, microbiology, microscopic, modern, organism, parasitic, pathogen, pictogram, pilus, prokaryotic, research, science, sign, silhouette, symbol, system, technology, viral, virion, virology, virus,