Sergeant Schlock poses a more serious problem. We don't really know how to culture or diagnose this kind of infection in him.
Censuses show fewer than two hundred carbosilicate amorphs abroad in the galaxy, and apparently they don't spend any time in hospitals.
Medical literature is silent on the subject. There is no baseline, everything I know about the Sergeant comes from my own notes.
How does Schlock keep passing physicals?
He doesn't so much "pass" them as "never let them catch up."