This is an introduction to the fascinated multidisciplinary world of water, sanitation, and hygiene (WASH). An area relevant due to the 1,5 million people annually dying of WASH-related disease, but also highly relevant during any emergency, whether it is a cholera outbreak in the slums of Dhaka Bangladesh, drought and water shortage in Kenya or hygiene-related virus outbreaks anywhere on the globe. The course ties theories of engineering, anthropology, public health, epidemiology, microbiology, disaster management, etc. with practical exercises to provide the student with the multifaceted background knowledge needed to be able to respond in an emergency actively. The course Water and sanitation in Emergencies started as a response to the Tsunami in 2004 and is now an independent elective course under the world-renowned Master of Disaster Management program, http://www.mdma.ku.dk, at University of Copenhagen. Read more and register for the course on https://globalhealth.ku.dk/studies/courses/water_supply_and_sanitation_in_emergencies.