swab from a chronic infection
"Everyone likes a scapegoat. But blaming one individual bug is usually mistaken. Taking a swab from a chronic infection is like making arrests at the scene of a riot. Those who survive the journey to the police station will be identified. Bugs that grow from the swab were definitely there. Others may well have been there too. Some guilty parties may not have been picked up, some may not grow in the lab"
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.