A limited historical perspective can affect the questions we pose about the
sudden infant death syndrome (SIDS) issue. Evidence is presented from the
literature that the SIDS rate in Western countries was low prior to World W
ar II and peaked in the 1980s. An analogy is drawn with the trends in the p
revalence of some infectious diseases, and questions are posed from the per
spective of a bacterial toxin hypothesis of SIDS causation. (C) 1999 Publis
hed by Elsevier Science B.V. All rights reserved.