This chapter looks at public health on a global scale and examines how crucial this topic has become since the recent Covid-19 pandemic. Global political interest in pandemics, the chapter argues, is about much more than just the threat to health and lives. It is also about the knock-on impact health emergencies, such as the recent pandemic, have on economics and society including social welfare and education, but also socio-economic, gender, and racial equality. The chapter starts with an examination of how health became a global issue with reference in particular to the relationship between war and disease. In addition to this, health became a global issues as a result of the growth in world trade and the resultant economic globalization. Two case studies are presented in this chapter. The first consider the United Nations Security Council Resolution 1308 and the second delves into the relationship between Covid-19 vaccinations and intellectual property rights.