The article by Duma and others in the February 4 issue of the Journal properly emphasizes the point that parenteral fluids as well as intravenous devices per se may have a substantial role in the development of iatrogenic infection. At least one similar case has been treated in this hospital in recent months. The problem that this study defines is not newly recognized. A report of two similar cases by Michaels and Ruebner, in an article entitled “Growth of Bacteria in Intravenous Infusion Fluids” (Lancet 1:772–774, 1953), was published nearly 20 years. In that communication the authors.