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.
Answers. 1  The country of Egypt is located in the north eastern region of Africa. It is bordered on the north by the Mediterranean Sea. In the south there is a mountain range which receives snow. The climate of Egypt is dry and arid because the Sahara Desert crosses it. One of the major geographical features of this area is the Nile River, which runs northward toward the Mediterranean Sea. One of the most important features of the Nile is that it makes a 320 km (200 miles) bend in the Sahara Desert.