The article describes a series of experiments conducted to explore how yellow fever is
propagated from individual to individual and how the contagium is spread within
households. The study was conducted in an experimental sanitary station in Cuba, where
exposures and movements could be completely controlled. During the investigation, 12
nonimmune persons underwent different exposures, including mosquitoes that had fed on
yellow fever patients, blood from infected patients, and fomites belonging to infected …