Ключевые слова: background, bacteria, bacterial, banner, blue, care, concept, coronavirus, defense, design, disease, doctor, flu, flyer, germ, graphic, health, healthy, icon, icons, illness, illustration, image, immune, immunity, immunization, immunologist, immunology, infection, layout, medical, medicine, poster, prevention, print, protection, protective, red, safety, shield, sign, symbol, system, template, theme, virus, wallpaper, white,