Polysaccharide protein conjugate vaccines are primarily used for the prevention of bacterial infections. Some pathogenic bacteria are covered with a polysaccharide capsule that primarily helps protect the bacteria from phagocytosis, or uptake of the bacteria by immune cells.
Egypt is part of the Continent of Africa, and is situated in the north eastern part of Africa. Egypt is located on the African continent, but is included in maps of the Middle East, because of its Arabic influence. Egypt is in the Continent of Africa.
Ancient Egypt was a civilization of ancient Northeastern Africa, concentrated along the lower reaches of the Nile River in what is now the modern country of Egypt.It is one of six civilizations globally to arise independently.gypt reached the pinnacle of its power during the New Kingdom, in the Ramesside period where it rivalled the Hittite Empire, Assyrian Empire and Mitanni Empire, after which it entered a period of slow decline.