Spanish American War (21 abr 1898 año – 10 dic 1898 año)
Descripción:
 - first major conflict after accepting germ theory; new role of medicine and public health
- white man’s burden in PR: death rate twice that of US, so col became benevolent public health/ humanitarian mission
- new sanitation modeled after US and asserted control over islands treasury through which did smallpox vaccine (sanitation as emergency measure to stop soldier death) 
Añadido al timeline:
fecha:
21 abr 1898 año
10 dic 1898 año
 ~ 7 months