The Specialized Master's degree programme in Epidemiology at the University of Basel is run by the Swiss Tropical and Public Health Institute (Swiss TPH). The program centres around teaching the basics of epidemiology and biostatistics, and the pursuit of an epidemiological research topic. Epidemiologists investigate the health of populations, study disease and possible risk factors, propose actions and then measure whether the health situation has improved. They also study disease outbreaks, conduct disease surveillance, identify possible health risk factors and propose measures for disease screening. To do this, epidemiologists design field studies to collect and analyse data, using a variety of methods and often as part of large multi-disciplinary teams.