Epidemiological characteristics of COVID-19 cases in a hotel Fangcang shelter hospital in Sanya.

Objective: To analyze the epidemiological characteristics of COVID-19 cases (Omicron variant BA5.1.3 ) in a hotel Fangcang shelter hospital in Sanya, Hainan Province, and provide basis for optimizing epidemic prevention and control strategies. Methods: The epidemiological data of COVID-19 cases admitted to a hotel Fangcang shelter hospital in Sanya from August 10 to August 30 in 2022 were collected for descriptive epidemiological analysis. Results: By August 30, 703 cases of COVID-19 had been treated in the hotel Fangcang shelter hospital. The epidemiological characteristics analysis showed that 328 cases were male, accounting for 46.7%, and 375 cases were female, accounting for 53.3%. The ratio of male to female was 0.87:1. The age range was 8 months to 85 years old, with a median of 37 (20,49) years old. The majority of people aged 31-59 years old, accounting for 51.4%. Asymptomatic infection accounted for 39.8%, and mild infection accounted for 60.2%, the main clinical symptoms were cough 24.8% (105/423), fever 18.7% (79/423). 8.8% of the infected people had a history of chronic basic diseases, and hypertension and diabetes were the most common. There were 416 infected patients discharged from hospital, and the median total hospital stay was 14 (10,15) days. The proportion of people who did not receive COVID-19 vaccine was 10.1%, the proportion of people who completed one, two and three vaccination was 5.0%, 36.3% and 48.6% respectively, and the proportion of people who completed two and three vaccinations among people 60 years old was only 10.1% and 8.8%. Conclusion: This strain was the novel coronavirus variant BA5.1.3, which was reported for the first time in China. It was more infectious and insidious, and generally susceptible to people of all ages. Therefore, it is necessary to strengthen personal prevention and control, and did a good job of external anti input and internal anti diffusion, and strengthen nucleic acid detection to realize timely detection and early treatment, and strengthen COVID-19 vaccination, to improve vaccination rate and reduce infection rate. [ABSTRACT FROM AUTHOR]