Sometimes people report having had a series of infections, which may be a sign that they are run down. However, there is no clear evidence of the virus or bacterium persisting once CFS has become established. Recent research suggests that excessive resting at the height of an infection is likely to lead to worse symptoms several weeks and months later. Although it is advisable to ‘take it easy’ when in the acute phase of an infection, too much rest is unhelpful.
