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[Epidemiological characteristics of imported COVID-19 cases in Tianjin].
Yu, J B; Wang, Y M; Yu, H; Zhang, J W; Zhou, P H; Zhou, P; Xu, P; Feng, L H; Hou, C C; Gu, Q.
  • Yu JB; School of Public Health,Tianjin Medical University, Tianjin 300070, China Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Wang YM; School of Public Health,Tianjin Medical University, Tianjin 300070, China Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Yu H; Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Zhang JW; Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Zhou PH; Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Zhou P; Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Xu P; Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Feng LH; Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Hou CC; Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.
  • Gu Q; School of Public Health,Tianjin Medical University, Tianjin 300070, China Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China Tianjin Health Commission, Tianjin 300070, China.
Zhonghua Liu Xing Bing Xue Za Zhi ; 42(12): 2082-2087, 2021 Dec 10.
Article in Chinese | MEDLINE | ID: covidwho-1600042
ABSTRACT

Objective:

To understand the epidemiological characteristics of imported COVID-19 cases in Tianjin, and provide references for risk assessment and control of imported COVID-19 cases.

Methods:

The information of imported COVID-19 cases were obtained from National Notifiable Disease Report System of China CDC. The data of imported COVID-19 cases reported from Tianjin airport and epidemiological surveys by CDCs at all levels from March 15, 2020 to August 31, 2021 were collected and analyzed by using software Excel 2010, SPSS 25.0 and R.

Results:

From March 15, 2020 to August 31, 2021, a total of 606 imported cases of COVID-19 were reported in Tianjin, in which 552 cases were finally included in the analysis. The male to female ratio of the cases was 1.8∶1, the age of the cases ranged from 3 to 77 years, and the cases were mainly reported in age group 20-39 years (59.8%). The areas where the imported case sojourned within 14 days included Europe (242 cases, 43.8%), Africa (139 cases, 25.2%), Americas (85 cases, 15.4%) and Asia (86 cases, 15.6%). The proportion of confirmed cases in autumn and winter was relatively high. During the study period, the proportion of infected persons found in custom entry quarantine decreased, and the proportion of persons with personal health declaration and under medical isolation observation increased. The interval between entry and diagnosis of infected persons tended to increase.

Conclusion:

The proportion of imported COVID-19 cases detected on the first day of entry at Tianjin airport decreased, and the interval to detect the infected persons trended to increase, to which close attention must be paid.
Subject(s)

Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Observational study / Prognostic study / Randomized controlled trials Limits: Adolescent / Adult / Aged / Child / Child, preschool / Female / Humans / Male / Middle aged / Young adult Country/Region as subject: North America / Asia Language: Chinese Journal: Zhonghua Liu Xing Bing Xue Za Zhi Year: 2021 Document Type: Article Affiliation country: Cma.j.cn112338-20210816-00647

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Observational study / Prognostic study / Randomized controlled trials Limits: Adolescent / Adult / Aged / Child / Child, preschool / Female / Humans / Male / Middle aged / Young adult Country/Region as subject: North America / Asia Language: Chinese Journal: Zhonghua Liu Xing Bing Xue Za Zhi Year: 2021 Document Type: Article Affiliation country: Cma.j.cn112338-20210816-00647