[Editorial] Migration and health (Lancet Infectious Diseases)

The relation between migration and infectious disease is complicated. On one hand, prejudice against immigration has a long and dark history of baselessly associating immigrants with the spread of infectious disease. On the other, it`s important to recognise that some migrants--particularly refugees fleeing war, persecution, or natural disaster--come from regions with weak or disrupted health systems and so face a unique set of challenges to health care. The movement of people is high on the political agenda in Europe and the USA, and in 2015, an unprecedented 65 million people were displaced worldwide.