1. Introduction
In traditional Chinese medicine (TCM) novel coronavirus disease 2019 (COVID-19) belongs to the category of “epidemic diseases”. The cause of the disease is “plague rage” with characteristics that include rapid onset, mutual infection, similar symptoms, and serious illness. The COVID-19 medical scheme (trial edition 8) (National,et al.,2020)suggests that different considerations such as the state of the illness, underlying physical conditions, and local climate characteristics impact the clinical manifestations and potential treatment of COVID-19. Current TCM understanding of the disease suggests that it primarily affects the lung, and its etiology and disease onset and progression are mainly due to the cold-dampness epidemic pathogen. Traditional Chinese medicine symptoms and protocols vary for COVID-19, which is a reflection of the complexity of the disease. The main cluster of COVID-19 patients in Chongqing, China was located in Wanzhou. Thus, this study conducted a retrospective analysis of patients with COVID-19 from Wanzhou to summarize their TCM symptom characteristics and prescriptions. These findings will provide a reference for the regional pathogenic characteristics of COVID-19 and TCM treatment based on symptom differentiation.