On December 16 (in old lunar calendar), four doctors, Zui, Tsuneyoshi, Mitsuosa and Tsuneyoshi's son Tsunenori, all together, reexamined the Emperor and they found out that there was a strong possibility that he had been affected with smallpox.
12月16日（1月21日）、隨・経由・光順と、経由の息子・経徳の計4名で改めて拝診した結果、天皇が痘瘡（天然痘）に罹患している可能性が強まる。