Public Health Challenges in both Developing and Developed Countries: A review

This paper compares and shows how much more developing countries are more facing public health challenges than developed countries. It presents contributions of the World Health Organization to Public health threats. We also discuss public health challenges that are still rising in both developed and developing countries. Furthermore, this article sheds light on some signs of progress that have been made in public health worldwide by individual countries and/or international organizations.  In this review, some solutions and recommendations were suggested to achieve the targeted goals of Healthy people internationally.