Global Health pandemic

 Pandemic is the global outbreak of a disease. They are generally classified as epidemics first, which is the rapid spread of a disease across a particular region or regions.  Pandemic occurs when a new influenza virus emerges and spreads around the world, and most people do not have immunity to flight against it. One of it's characteristics is that of a large-scale outbreak of an infectious disease that can greatly increase morbidity and mortality over a wide geographic area and cause significantly economic, social, educational and political disruption.

A useful definition of “global health” is an elusive prey, hiding among its congeners of public health, international health, tropical public health, and global health governance. Some use the terms “international” and “global” interchangeably, though others contend that “international” is a more limited term used to describe health issues in the developing world from the perspective of the developed world. In other words, international health is the study of health in countries other than one’s own, especially if the other countries are representatives of the developing world. 

                 In today's global society, infectious disease outbreaks has  spread quickly throughout the world, fueled by the rapidity with which we travel across borders and continents. A useful definition of “global health” is an elusive prey, hiding among its congeners of public health, international health, tropical public health, and global health governance. Some use the terms “international” and “global” interchangeably, though others contend that “international” is a more limited term used to describe health issues in the developing world from the perspective of the developed world. In other words, international health is the study of health in countries other than one’s own, especially if the other countries are representatives of the developing world. Due in part to the events mentioned above, the term “global health” took on a separate, more inclusive meaning that addressed health issues affecting most countries in the world, especially health issues that crossed national borders. In the past, such issues included many infectious diseases such as influenza, tuberculosis, yellow fever, and cholera. More recently, the chronic diseases or conditions such as obesity ,COVID-19 outbreak  and diabetes which have become prominent global health issues as well. Of course, health conditions that transcend borders have always been part of the study of international health, so this variable seems insufficient for differentiating between the fields of international health and global health. 

             For instance, one definition of global health has been described as an area for study, research, and practice that places a priority on improving health and achieving equity in health for all people worldwide. Global health emphasizes transnational health issues, determinants, and solutions which involves many disciplines within and beyond the health sciences, and promotes interdisciplinary collaborations which is a synthesis of population- based prevention with individual clinical care. This definition includes concepts such as “determinants of health” and “health equity” that require a public health perspective much different from the older model that identified health-related deficiencies, then sought to address those deficiencies through direct health interventions aimed at the immediate cause. For instance, the immediate cause of COvID-19 is a one to one transmition of victims through personal contacts.

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