Risk Management and Healthcare Policy (Sep 2021)
Epidemiological Characteristics and Core Containment Measures of Imported COVID-19 Cases from Abroad in Early Phase in Guangdong, China
Abstract
Haiqian Chen,1 Leiyu Shi,2 Yuyao Zhang,1 Xiaohan Wang,1 Gang Sun1 1Department of Health Management, School of Health Management, Southern Medical University, Guangzhou, Guangdong, 510515, People’s Republic of China; 2Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, 21205, USACorrespondence: Gang SunDepartment of Health Management, School of Health Management, Southern Medical University, Guangzhou, Guangdong, 510515, People’s Republic of ChinaTel +86 14103189758Email [email protected]; [email protected]: This study aimed to analyze the distribution characteristics and influencing factors for the interval between entering mainland China and the diagnosis of imported COVID-19 cases in Guangdong province, in order to provide valuable experience for global pandemic in prevention and control.Methods: We collected publicly reported data between March 1 and June 2, 2020. Univariate and multivariate regression analyses were performed to identify the significant associated factors with the interval between entering mainland China and diagnosis of imported COVID-19 cases.Results: As of June 2, 2020, a total of 200 imported cases were reported in Guangdong province. The average interval time was 4.25 days with a median of 2 days, the interval time of 68% cases was between 1 and 3 days. The multivariate model results show that the three following factors were critical influencing factors: nationality was foreign nationality (P = 0.037), results of initial nucleic acid detection were negative (P = 0.000) and the interval between entering mainland China and the detection of positive results (T) exceeded two days (P = 0.008).Conclusion: The results suggested that all travelers and returning resident should be taken strict sampling and testing, and isolation measures, improved the accuracy of the initial nucleic acid test results, and the detection efficiency and shortening the interval between entering mainland China and detection of positive results.Keywords: COVID-19, imported cases, Guangdong province, containment measures
