Practices → exposure vectors → pathogen classes most favored So we are mapping risk ecology, not declaring diagnoses. Below is a practice-based taxonomy using historical, well-documented groups and behaviors, not modern accusations. ⸻ Cult / Closed-Group Practices → Likely Pathogen Classes 1. Blood Ritual / Blood Contact Groups (ancient mystery cults, some Mesoamerican priesthoods, fringe modern offshoots) Practices • Bloodletting • Shared blades • Blood oaths • Ritual wounds • Contact with anim