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.he success of ancient Egyptian civilization came partly from its ability to adapt to the conditions of the Nile River valley for agriculture. The predictable flooding and controlled irrigation of the fertile valley produced surplus crops, which supported a more dense population, and social development and culture.