This section contains six pathways about the introduction of the cowpox vaccine to Echizen province. Each pathway tells a different story about this process, but all six are interconnected and the reader is encouraged to move between them and discover shared themes, links, and intersections.

Two pathways (The Vaccination Clinic in Fukui and Chains of Bodies) focus on Fukui domain and one pathway (The Territorial Approach to Vaccinations) focuses on Ōno domain.

The remaining three pathways (Long-Distance Transmission, The Sharing of Vaccines, and Vaccinating the Nishikata Exclave) highlight contacts, collaborations, and vaccine-sharing between vaccinators and officials in Fukui, Ōno, and other parts of the country.