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.
Egypt is a state for the majority of its territory in Africa, however, part of its territory, the Sinai Peninsula, is located in the continent of Asia. Egypt borders to the west with Libya, and south with Sudan, and north-east with Israel, the Gaza Strip, overlooking the Red Sea from the eastern side.