A major
Japanese smallpox epidemic that started in 735 finally runs its course, but only after causing an estimated 25% to 35% mortality among the adult population in the country.[2]
^Farris, William Wayne (1985). Population, Disease, and Land in Early Japan, 645-900. Harvard University Asia Center. pp. 65–66.
ISBN9780674690059.
^Kuroita, Katsumi, ed. (1974). 続日本紀後編 [Shoku Nihongi Part 2]. Revised and Expanded Japanese History Compendium (新訂増補國史大系) (in Japanese). Yoshikawa Kōbunkan (吉川弘文館).
ISBN4642000046.