Topic hub

Pathogen Geography

Map-first work on how pathogens travel through ports, ships, animal reservoirs, water systems, roads, empires, and borders.

Essays

6 linked piece(s)

This hub groups related writing so readers can move from one argument to the surrounding disease history, ecology, and evidence.

January 11, 2026infectious disease · Indexed essay

Essay

Disease and Population Collapse After 1492

A careful look at disease, colonial disruption, Indigenous population collapse, Old World pathogens, and the limits of simple post-1492 stories.

January 3, 2026science · Indexed essay

Essay

Maritime Disease Ecology on Early Ships

Shipboard disease ecology before modern medicine: scurvy, infection, crowding, ports, naval history, and the epidemiology of life at sea.

December 17, 2025science · Indexed essay

Essay

Pre-Contact South American Disease Ecology

Part two of a pre-contact Americas disease ecology series, focused on South America, isolation, endemic infections, and ecological context.