You will develop a written paper comparing and contrasting vaccination systems in two (2) developing countries and one (1) economically developed country (three total). Address how the developing countries can improve their systems, including current systems, weak components in the current system, and elements that can be improved, as seen in MEDC successes. Be sure to read the attached requirements for success. Be six to eight pages in length, not including the cover or reference pages Be formatted according to APA format. Provide support for your statements with in-text citations from a minimum of seven scholarly articles. Utilize headings to organize the content in your work.