This course, Public Health in Humanitarian Crises 2, addresses public health issues of people affected by disasters, both natural or conflict-related. It discusses the many changes that occur in people’s lives when they are uprooted by a disaster, including many important topics related to humanitarian crises, such as when there is an epidemic a public health emergency; what do we mean with the humanitarian development nexus; what are the basics of disaster epidemiology and surveillance; humanitarian principles; and other very relevant topics.