Ключевые слова: aid, awareness, background, bacteria, bacterium, biology, blood, cancer, care, cell, concept, danger, day, death, disease, emblem, health, healthcare, help, hiv, hope, human, icon, illness, illustration, infection, isolated, life, medical, medicine, microbiology, microorganism, microscopic, no, organism, prevention, protection, red, ribbon, science, sick, sign, stop, symbol, treatment, virus, warning, web, world,