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22 December 2020 : Clinical Research

Characteristics and Effectiveness of the Coronavirus Disease 2019 (COVID-19) Prevention and Control in a Representative City in China

Ping Liu1ABCDEFG*, Zhoujun Ma2ABCDEFG, Yu Deng3BCDEF, Yongpu Li1BCDEF, Wei Xia1BCDE, Yu Liu1BCDE, Xiaolan Wu4BCDE, Junhuan Mou4BCDEF, Quan Li5BCDE, Jianghua Nie6BCDE, Wenxiu Zhou7BCDE, Xueqin Fu7BCDE, Fei Yu8BCDE, Yan Li8BCDE, Yaling Zhang8BCDE, Qin Xiang8BCDE, Xiaobin Peng2BCDE, Guangqun Jiang2ACG

DOI: 10.12659/MSM.927472

Med Sci Monit 2020; 26:e927472

Abstract

BACKGROUND: SARS-CoV-2 has caused a pandemic. Control measures differ among countries. It is necessary to assess the effectiveness of these control measures.

MATERIAL AND METHODS: We collected the data of COVID-19 patients and control measures between January 18, 2020 and September 18, 2020 from the Changshou District and analyzed the clinical characteristics, epidemiological data, and the adjustment of policies to assess the effectiveness of control measures. The control of COVID-19 was divided into 2 stages, with the lifting of lockdown in Hubei province (March 25, 2020) as a dividing line.

RESULTS: We identified 32 patients through different means in the first stage. All the imported patients entered this area before the lockdown. In 93.1% of patients, the last exposure occurred before the implementation of the stay-at-home order and centralized isolation. Tracing of high-risk people and RT-PCR screening identified 56.3% of cases. In the second stage, all the high-risk people were under centralized isolation. Nine asymptomatic patients were identified. City lockdown and stay-at-home orders were not issued again, and no second-generation patients were found.

CONCLUSIONS: We have provided a successful model to control the transmission of COVID-19 in a short period.

Keywords: asymptomatic infections, COVID-19, Epidemiology

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750