Is There a Disease in the Territory?

The adjective contagious isn't really a medical term, so ignore that they just tossed in the kitchen sink there. But you really need to understand the distinction between infectious and communicable. All communicable diseases were infectious, but some infectious diseases were not communicable. You could get lime disease, for instance, but you couldn't give it to somebody else. Communicable diseases were the diseases that created crises. In an adjective, she'd found a vessel for her life's purpose.