General DescriptionThe Johns Hopkins Center for Health Security (CHS) at the Bloomberg School of Public Health works to protect people's health from epidemics and disasters and ensure that communities are resilient to major challenges. We examine how scientific and technological innovations can strengthen health security. We study the policies, organizations, systems, and tools to prevent and respond to outbreaks and public health crises. We advance policies and practice to address a range of challenges, including the global rise in emerging infectious diseases, a continued risk of pandemic flu, major natural disasters, our dependence on vulnerable infrastructure, and the potential for biological, chemical, or nuclear accidents or deliberate threat