ABSTRACTThe prognostic influence of subfebrility and fever during the first week after an ischaemic cerebral stroke was analysed retrospectively in 110 patients with varying neurological disabilities. the results indicate that fever, and even subfebrility, carry a bad prognosis with respect to residual symptoms. It is concluded that fever and subfebrility, irrespective of their genesis, should be intensely combated during the early stages of an ischaemic stroke.