Epidemiological characteristics and temporal-spatial analysis of overseas imported dengue fever cases in outbreak provinces of China, 2005-2019.

IF 4.8 1区医学 Q1 INFECTIOUS DISEASES Infectious Diseases of Poverty Pub Date : 2022-01-24 DOI:10.1186/s40249-022-00937-5

Xinchang Lun, Yiguan Wang, Chunchun Zhao, Haixia Wu, Caiying Zhu, Delong Ma, Mingfang Xu, Jun Wang, Qiyong Liu, Lei Xu, Fengxia Meng

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引用次数: 12

Abstract

Background: Overseas imported dengue fever is an important factor in local outbreaks of this disease in the mainland of China. To better prevent and control such local outbreaks, the epidemiological characteristics and temporal-spatial distribution of overseas imported dengue fever cases in provincial-level administrative divisions (PLADs) where dengue fever is outbreak in the mainland of China were explored.

Methods: Using the Chinese National Notifiable Infectious Disease Reporting Information System (CNNDS), we identified overseas imported dengue fever cases in dengue fever outbreak areas in the mainland of China from 2005 to 2019 to draw the epidemic curve and population characteristic distribution of overseas imported cases in each PLAD. Based on spatial autocorrelation analysis of ArcGIS 10.5 and temporal-spatial scanning analysis of SaTScan 9.5, we analyzed the temporal-spatial distribution of overseas imported dengue fever in dengue fever outbreak areas in the mainland of China.

Results: A total of 11,407 imported cases, mainly from Southeast Asia, were recorded from 2005 to 2019 in these 13 PLADs. Of which 62.1% were imported into Yunnan and Guangdong Provinces. Among the imported cases, there were more males than females, mainly from the 21-50 age group. The hot spots were concentrated in parts of Yunnan, Guangdong and Fujian Provinces. We found the cluster of infected areas were expanding northward.

Conclusions: Based on the analysis of overseas imported dengue cases in 13 PLADs of the mainland of China from 2005 to 2019, we obtained the epidemiological characteristics and spatial distribution of imported dengue cases. Border controls need to pay attention to key population sectors, such as 21-50 years old men and education of key populations on dengue prevention. There is a need to improve the awareness of the prevention and control of imported cases in border areas. At the same time, northern regions cannot relax their vigilance.

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2005-2019年中国境外输入登革热病例流行病学特征及时空分析

背景:境外输入性登革热是中国大陆本地登革热疫情发生的重要因素。为更好地预防和控制登革热本地疫情，对中国大陆登革热疫区境外输入登革热病例的流行病学特征和时空分布进行了调查。方法:利用中国国家法定传染病报告信息系统(CNNDS)对2005 - 2019年中国大陆登革热疫区境外输入登革热病例进行统计，绘制各疫区境外输入病例流行曲线和人口特征分布。基于ArcGIS 10.5空间自相关分析和SaTScan 9.5时空扫描分析，对中国大陆登革热疫区境外输入性登革热的时空分布进行了分析。结果:2005 - 2019年，13个疫区共报告输入性病例11407例，主要来自东南亚。其中62.1%输入云南和广东。输入性病例中男性多于女性，主要集中在21-50岁年龄组。热点集中在云南、广东和福建的部分地区。我们发现感染区正在向北扩展。结论:通过对2005 - 2019年中国大陆13个疫区境外输入登革热病例的分析，掌握了境外输入登革热病例的流行病学特征和空间分布。边境管制需要关注关键人群，如21-50岁的男性，并对关键人群进行登革热预防教育。有必要提高边境地区预防和控制输入性病例的认识。与此同时，北方地区也不能放松警惕。

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来源期刊

Infectious Diseases of Poverty Medicine-Public Health, Environmental and Occupational Health

CiteScore

16.70

自引率

1.20%

发文量

368

审稿时长

13 weeks

期刊介绍： Infectious Diseases of Poverty is a peer-reviewed, open access journal that focuses on essential public health questions related to infectious diseases of poverty. It covers a wide range of topics and methods, including the biology of pathogens and vectors, diagnosis and detection, treatment and case management, epidemiology and modeling, zoonotic hosts and animal reservoirs, control strategies and implementation, new technologies, and their application. The journal also explores the impact of transdisciplinary or multisectoral approaches on health systems, ecohealth, environmental management, and innovative technologies. It aims to provide a platform for the exchange of research and ideas that can contribute to the improvement of public health in resource-limited settings. In summary, Infectious Diseases of Poverty aims to address the urgent challenges posed by infectious diseases in impoverished populations. By publishing high-quality research in various areas, the journal seeks to advance our understanding of these diseases and contribute to the development of effective strategies for prevention, diagnosis, and treatment.