Regarding Fenner see, John Duffy, "Erasmus Darwin Fenner (1807–1866) Journalist, Educator, and Sanitarian," Academic Medicine. 35 (1960) 819-831. Digital facsimile of the 1850-51 edition from the Internet Archive at t…
Carter's determination of the incubation period yellow fever influenced the direction of Reed’s researches, and was instrumental in the discovery of the mode of transmission of the yellow fever virus.