Epidemics

Several smallpox epidemics have swept into, and through, the Pacific Northwest,causing devastating effects on Indigenous communities.

Smallpox visualization
Animated visual of pencil drawn people getting smallpox.

Populations dropped by as much as 90% in the course of just three weeks. Malnutrition and dehydration compounded mortality rates; survivors were left physically and emotionally scarred; the sudden loss of knowledge keepers left survivors confused and vulnerable.

We are still in the process of determining the exact origin/cause of each of these epidemics, as well as their full geographic extent.

Tip: click “Read More” to see maps and important events
1770
Aluetian Islands
1775
Alaskan
Panhandle
1782
Columbia River
system,
Salish Sea
1835
North Coast and
Aleutian Islands
1845
Oregon Plateau
1853
Puget Sound
1860
Nitinat River on
Vancouver Island
1862
British Columbia
1868
Fraser Valley and
West Coast Van.
Island
1894
New Westminster
and Victoria

Endemic Smallpox

By the late nineteenth century, a combination of steamboat and railroad transportation associated with increased settler populations, tempered by systematic vaccination efforts, transformed smallpox from a disease that arrived as periodic epidemics among virgin (unvaccinated) populations into a disease that was endemic with sporadic outbreaks that tended to be locally isolated.