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Zhang Z, Chen Y, Li Q, Yang Y, Chen J, Lin Y, Xiao Z, Ma M, Wu C, Liu B, Xu R, Xiang J. Epidemiological characteristics of overseas imported COVID-19 cases into China: A scoping literature review. Front Public Health 2023; 11:1143468. [PMID: 37064698 PMCID: PMC10090422 DOI: 10.3389/fpubh.2023.1143468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/13/2023] [Indexed: 03/31/2023] Open
Abstract
Previous studies investigating the characteristics of imported cases were mostly limited to a certain province/city or a specific sub-group during a certain period with a small sample size, which may not provide an overall picture of the characteristics of imported cases. In this scoping literature review, we comprehensively synthesized the epidemiological characteristics of overseas imported COVID-19 cases into China by retrieving six literature databases, with aims to provide implications for more targeted control, prevention, and medical treatment of this disease. After dropping duplicates and reviewing titles, abstracts, and full-texts, 50 articles were included in the review finally, including 26 (52%) articles in English and 24 (48%) articles in Chinese. According to the type of data sources, the 50 studies were divided into three categories: 13 (26%) articles using data sourced from the Chinese Infectious Diseases Online Reporting System, 15 (30%) articles using data from the websites of national/local health departments, and 22 (44%) articles using hospital admission data. Most of the overseas imported COVID-19 cases were young and middle-aged Chinese students and businessmen returning from the United States, Europe, and some neighboring countries. Airport routine health screening measures could not identify COVID-cases effectively, although scheduled multiple nucleic acid tests were required before boarding. Almost all imported cases were identified during the hotel quarantine period. Although a large proportion of imported cases were asymptomatic or with mild symptoms in the published literature, they may be due to participant selection bias. The exact proportion of asymptomatic cases may need to be further investigated especially through population-based large-scale studies.
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Affiliation(s)
- Zitong Zhang
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Yifeng Chen
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Qingyu Li
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Yan Yang
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Jiake Chen
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Yan Lin
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Zhihong Xiao
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Marie Ma
- Magill Medical Center, Adelaide, SA, Australia
| | - Chuancheng Wu
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Baoying Liu
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Rongxian Xu
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
| | - Jianjun Xiang
- School of Public Health, Fujian Medical University, Fuzhou, Fujian Province, China
- *Correspondence: Jianjun Xiang,
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Liao X, Li D, Liu J, Liu Z, Ma Z, Dong J, Yang X, Shu D, Yuan J, Liu L, Zhang Z. Neutralizing monoclonal antibody in patients with coronavirus disease 2019: an observational study. Virol J 2022; 19:218. [PMID: 36522677 PMCID: PMC9753860 DOI: 10.1186/s12985-022-01944-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Clinical data on patients infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) delta variant are limited, especially on clinical status after the application of antibody therapy. METHODS We evaluated clinical status in patients with the SARS-CoV-2 delta variant after BRII-196 and BRII-198 treatment in an infectious disease hospital in China. We collected data on clinical symptoms, laboratory tests, radiological characteristics, viral load, anti-SARS-CoV-2 antibodies, treatment, and outcome. RESULTS In mid-June 2021, 36 patients with delta variant infection were identified in Shenzhen. The most common symptoms at illness onset were cough (30.6%), fever (22.2%), myalgia (16.7%), and fatigue (16.7%). A small number of patients in this study had underlying diseases, including diabetes (5.6%) and hypertension (8.3%). The application of BRII-196 and BRII-198 can rapidly increase anti-SARS-CoV-2 IgG. The median peak IgG levels in the antibody treatment group were 32 times higher than those in the control group (P < 0.001). The time from admission to peak IgG levels in the antibody treatment group (mean: 10.2 days) was significantly shorter than that in the control group (mean: 17.7 days). Chest CT score dropped rapidly after antibody therapy, with a mean duration of 5.74 days from admission to peak levels. CONCLUSION The results of this study suggest that the application of BRII-196 and BRII-198 antibody therapy improved clinical status in patients with SARS-CoV-2 delta variant infection.
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Affiliation(s)
- Xuejiao Liao
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China
| | - Dapeng Li
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China
| | - Jie Liu
- grid.412645.00000 0004 1757 9434Department of Neurology, Tianjin Medical University General Hospital, Tianjin, 300052 China
| | - Zhi Liu
- grid.263817.90000 0004 1773 1790Department of the Third Pulmonary Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China
| | - Zhenghua Ma
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China
| | - Jingke Dong
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China
| | - Xiangyi Yang
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China
| | - Dan Shu
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China
| | - Jing Yuan
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China
| | - Lei Liu
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China ,Shenzhen Research Center for Communicable Disease Diagnosis and Treatment of Chinese Academy of Medical Science, Shenzhen, 518112 Guangdong Province China
| | - Zheng Zhang
- grid.263817.90000 0004 1773 1790Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112 Guangdong Province China ,Shenzhen Research Center for Communicable Disease Diagnosis and Treatment of Chinese Academy of Medical Science, Shenzhen, 518112 Guangdong Province China ,Guangdong Key Laboratory for Anti-Infection Drug Quality Evaluation, Shenzhen, 518112 Guangdong Province China
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