What is the concept of "magic bullet" and how is it related to his work?
Paul Ehrlich coined the term "magic bullet" to describe a targeted therapeutic agent that could specifically bind to and eliminate disease-causing organisms without harming the host. This concept emerged from his histological work, where he observed how specific dyes selectively stained certain cells or tissues. His idea of a "magic bullet" laid the groundwork for the development of targeted therapies in medicine, including modern antibiotics and cancer treatments.