Chronic fatigue syndrome

This week’s hot topic is chronic fatigue syndrome. The journal Science published a paper in October 2009, which suggested a possible link between a new virus (xenotrophic murine leukaemia virus-like virus) and the syndrome. Duncan Jarvies is looking at the evidence behind this link, and finding out more about the history and treatment of the condition. Richard Hurley takes us through what caught his eye on bmj.com week.