FENG Ting 1 , XING Xiangju 1 , ZHOU Shuang 1 , WEI Xiaoling 1 , LU Ling 1 , LONG Tao 2 , WANG Zhiyi 2 , YAO Wei 1 , LIU Xiang 1 , WANG Changzheng 1
  • 1. Department of Respiratory Medicine, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, P. R. China;
  • 2. Department of Oncology, The Second Affiliated Hospital of Army Medical University, Chongqing 400000, P. R. China;
LIU Xiang, Email: liuxiangkuba@126.com; WANG Changzheng, Email: czwang@netease.com
Omicron; mild COVID-19; symptom; questionnaire
10.7507/1671-6205.202301036
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Objective  To understand the new characteristics of clinical symptoms of patients with mild COVID-19 during the prevalence of SARS-CoV-2 Omicron, and provide basis for better prevention and treatment of COVID-19.Methods  A cross-sectional retrospective study was conducted with WeChat questionnaire among medical staff with COVID-19 recently, who come from the Third Affiliated Hospital of Chongqing Medical University and The Second Affiliated Hospital of Army Medical University.Results  A total of 630 valid questionnaires was received. 99.2% of infected people had been vaccinated against COVID-19. 2.4% of infected persons developed pneumonia and 2.1% were hospitalized. The most common symptoms after infection were coughing (89.7%), fever (83.0%), fatigue (84.1%), headache and dizziness (75.7%), muscle soreness (72.7%), sore throat (62.1%), nasal congestion and runny nose (60.6%), expectoration (71.6%), anorexia (58.0%) and taste loss (40.2%). The incidence of gastrointestinal symptoms and cardiovascular symptoms was relatively low (17.8% and 31.0% respectively). The severity of self-reported symptoms of most infected persons was moderate or severe. The proportion of serious symptoms reported was coughing (23.8%), sore throat (27.0%), headache and dizziness (17.9%). The severity of symptoms reported by young group (<35 years old) was significantly higher than that of older group (>35 years old). Fever was the highest at 38 to 39 ℃ (52.4%). 77.0% of fever sustained for 1 to 3 days. At the time of investigation, the viral detection turned negative in 60.6% of infected people, and the time of turning negative was mostly 7 to 10 days. More than half of the infected persons still had different symptoms, among which cough (43.7%) and fatigue (23.8%) were the most common.Conclusions  Most subjects with mild COVID-19 infection have obvious upper respiratory tract and systemic symptoms, the most prominent is the high incidence of cough, which has become a new feature of omicron infection. And most of the infected people have moderate to severe symptoms, and the younger ones have more severer symptoms.

Citation： FENG Ting, XING Xiangju, ZHOU Shuang, WEI Xiaoling, LU Ling, LONG Tao, WANG Zhiyi, YAO Wei, LIU Xiang, WANG Changzheng. Symptom reported by hospital staff with mild COVID-19 during the Omicron epidemic in Chongqing. Chinese Journal of Respiratory and Critical Care Medicine, 2023, 22(1): 7-12. doi: 10.7507/1671-6205.202301036 Copy

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