This study was conducted to determine whether one could identify viral and bacterial pulmonary infections with confidence. It has been our impression for some time that one could differentiate viral from bacterial pulmonary infections on the basis of roentgenographic findings alone and to test this hypothesis, we conducted this study where the roentgenographic findings first were categorized as being due to viral or bacterial infection and then compared with clinical results. The overall accuracy was just over 90% and our method of analysis is presented.
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