SIR,-I wish to refer to the excellent article by Drs. H. G. Miller, J. B. Stanton, and J. L. Gibbons on acute disseminated encephalomyelitis (Journal, March 23, p. 668). Unfortunately, however, it perpetuates an error which has crept into the literature concerning the reports of cases in which the condition of acute haemorrhagic leuco-encephalitis has complicated an infectious exanthem. In 1945...