Ключевые слова: adaptive, antibody, antiviral, bacteria, bacterial, bacterium, body, cell, collection, color, concept, covid19, defence, design, disease, graphic, health, human, illustration, immune, immunity, immunization, immunology, infection, innate, isolated, lymphatic, mast, medicine, micro, microbiology, monocyte, nonspecific, organism, pandemic, power, prevention, protection, protective, resizable, response, set, sign, slow, specific, structure, system, virus,