RT Journal A1 Phair JP T1 FEver JF Archives of Internal Medicine JO Archives of Internal Medicine YR 1979 FD November 1 VO 139 IS 11 SP 1219 OP 1219 DO 10.1001/archinte.1979.03630480009004 UL http://dx.doi.org/10.1001/archinte.1979.03630480009004 AB Fever and hyperthermia, the subject of a recent symposium of the American Physiologic Society and an article questioning the utility of fever patterns as a diagnostic aid by Musher et al in this issue of the Archives (see p 1225), have long been of interest to physicians. Atkins and Bodel point out that elevation of body temperature is recorded in the Sumerian cuneiform writings of the sixth century BC. During the 19th century, temperature regulation was recognized as an example of homeostasis, balancing heat produced by metabolic activity with loss through autonomic control of superficial blood flow.1 The first suggestion that fever was due to endogenous pyrogen was also made before the turn of the century, but Beeson's discovery in the 1940s of the production of "leukocyte pyrogen" renewed interest in the mechanism of induction of fever by inflammation.2 It is now well established that clinical fevers, as