The Prevalence of and Responses to Infectious Diseases in No Sangchu Ilgi

This paper examines the patterns of infectious diseases during the Joseon dynasty in the 18th and 19th centuries, as described in No Sangchu Ilgi (the diaries of No Sangchu) and the responses of No Sangchu and his family. During this period, infectious diseases such as smallpox and measles were prevalent. No Sangchu's diaries detailed accounts related to his family and hometown. For example, the diaries show that the infection rate was high among young children, such as No's younger siblings and nephews. The process of nursing them is meticulously documented. To address infectious diseases, No sought medical assistance by meeting with doctors or visiting pharmacies for prescribed remedies. Additionally, he and his family would relocate to temples or relatives' homes to avoid areas with severe outbreaks. When engaged in official duties, updates about his family and hometown were received through letters, and the diary primarily focused on the circumstances at his workplace. In 1799, while working in the central government, No encountered a large-scale outbreak of infectious diseases. He extensively documented the resulting damage, including the loss of his own family members. An examination of his diaries not only reveals No Sangchu's individual responses but also sheds light on the state's efforts to maintain a relief system. In summary, No Sangchu Ilgi provides detailed records of infectious diseases directly related to household well-being and the state's to infectious diseases, making it a valuable source for understanding the experience of infectious diseases in the late Joseon period.