Change-of-type theory of disease
= Change-of-type theory of disease
A nineteenth-century explanation of changing therapeutic practice: inflammatory <diseases> were said to have become less vigorous or more debilitating, requiring less depletion. It competed with explanations based on improved <pathology> and better evaluation of <treatment>. This is a historical theory, not a general modern law. <The Bloodletting Controversy (1858 review)>[pp. 1–3]{ref}