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.
Do you consider Egypt as part of Middle East or Africa? Geographically, Egypt is part of Africa but culturally, Egypt is some kind of Middle Eastern country. Granted, Egypt is located in the continent of Africa but I'd associate it more with Middle East and I rarely considered Egypt as part of Africa. 12-10-05, 22:07 #2 Frank D. White