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The changing epidemiology of dengue in China, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data
BACKGROUND: Dengue has been a notifiable disease in China since 1 September 1989. Cases have been reported each year during the past 25 years of dramatic socio-economic changes in China, and reached a historical high in 2014. This study describes the changing epidemiology of dengue in China during t...
Autores principales: | , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4431043/ https://www.ncbi.nlm.nih.gov/pubmed/25925417 http://dx.doi.org/10.1186/s12916-015-0336-1 |
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author | Lai, Shengjie Huang, Zhuojie Zhou, Hang Anders, Katherine L Perkins, T Alex Yin, Wenwu Li, Yu Mu, Di Chen, Qiulan Zhang, Zike Qiu, Yanzi Wang, Liping Zhang, Honglong Zeng, Linjia Ren, Xiang Geng, Mengjie Li, Zhongjie Tatem, Andrew J Hay, Simon I Yu, Hongjie |
author_facet | Lai, Shengjie Huang, Zhuojie Zhou, Hang Anders, Katherine L Perkins, T Alex Yin, Wenwu Li, Yu Mu, Di Chen, Qiulan Zhang, Zike Qiu, Yanzi Wang, Liping Zhang, Honglong Zeng, Linjia Ren, Xiang Geng, Mengjie Li, Zhongjie Tatem, Andrew J Hay, Simon I Yu, Hongjie |
author_sort | Lai, Shengjie |
collection | PubMed |
description | BACKGROUND: Dengue has been a notifiable disease in China since 1 September 1989. Cases have been reported each year during the past 25 years of dramatic socio-economic changes in China, and reached a historical high in 2014. This study describes the changing epidemiology of dengue in China during this period, to identify high-risk areas and seasons and to inform dengue prevention and control activities. METHODS: We describe the incidence and distribution of dengue in mainland China using notifiable surveillance data from 1990-2014, which includes classification of imported and indigenous cases from 2005-2014. RESULTS: From 1990-2014, 69,321 cases of dengue including 11 deaths were reported in mainland China, equating to 2.2 cases per one million residents. The highest number was recorded in 2014 (47,056 cases). The number of provinces affected has increased, from a median of three provinces per year (range: 1 to 5 provinces) during 1990-2000 to a median of 14.5 provinces per year (range: 5 to 26 provinces) during 2001-2014. During 2005-2014, imported cases were reported almost every month and 28 provinces (90.3%) were affected. However, 99.8% of indigenous cases occurred between July and November. The regions reporting indigenous cases have expanded from the coastal provinces of southern China and provinces adjacent to Southeast Asia to the central part of China. Dengue virus serotypes 1, 2, 3, and 4 were all detected from 2009-2014. CONCLUSIONS: In China, the area affected by dengue has expanded since 2000 and the incidence has increased steadily since 2012, for both imported and indigenous dengue. Surveillance and control strategies should be adjusted to account for these changes, and further research should explore the drivers of these trends. Please see related article: http://dx.doi.org/10.1186/s12916-015-0345-0 ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12916-015-0336-1) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-4431043 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-44310432015-05-15 The changing epidemiology of dengue in China, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data Lai, Shengjie Huang, Zhuojie Zhou, Hang Anders, Katherine L Perkins, T Alex Yin, Wenwu Li, Yu Mu, Di Chen, Qiulan Zhang, Zike Qiu, Yanzi Wang, Liping Zhang, Honglong Zeng, Linjia Ren, Xiang Geng, Mengjie Li, Zhongjie Tatem, Andrew J Hay, Simon I Yu, Hongjie BMC Med Research Article BACKGROUND: Dengue has been a notifiable disease in China since 1 September 1989. Cases have been reported each year during the past 25 years of dramatic socio-economic changes in China, and reached a historical high in 2014. This study describes the changing epidemiology of dengue in China during this period, to identify high-risk areas and seasons and to inform dengue prevention and control activities. METHODS: We describe the incidence and distribution of dengue in mainland China using notifiable surveillance data from 1990-2014, which includes classification of imported and indigenous cases from 2005-2014. RESULTS: From 1990-2014, 69,321 cases of dengue including 11 deaths were reported in mainland China, equating to 2.2 cases per one million residents. The highest number was recorded in 2014 (47,056 cases). The number of provinces affected has increased, from a median of three provinces per year (range: 1 to 5 provinces) during 1990-2000 to a median of 14.5 provinces per year (range: 5 to 26 provinces) during 2001-2014. During 2005-2014, imported cases were reported almost every month and 28 provinces (90.3%) were affected. However, 99.8% of indigenous cases occurred between July and November. The regions reporting indigenous cases have expanded from the coastal provinces of southern China and provinces adjacent to Southeast Asia to the central part of China. Dengue virus serotypes 1, 2, 3, and 4 were all detected from 2009-2014. CONCLUSIONS: In China, the area affected by dengue has expanded since 2000 and the incidence has increased steadily since 2012, for both imported and indigenous dengue. Surveillance and control strategies should be adjusted to account for these changes, and further research should explore the drivers of these trends. Please see related article: http://dx.doi.org/10.1186/s12916-015-0345-0 ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12916-015-0336-1) contains supplementary material, which is available to authorized users. BioMed Central 2015-04-28 /pmc/articles/PMC4431043/ /pubmed/25925417 http://dx.doi.org/10.1186/s12916-015-0336-1 Text en © Lai et al.; licensee BioMed Central. 2015 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Lai, Shengjie Huang, Zhuojie Zhou, Hang Anders, Katherine L Perkins, T Alex Yin, Wenwu Li, Yu Mu, Di Chen, Qiulan Zhang, Zike Qiu, Yanzi Wang, Liping Zhang, Honglong Zeng, Linjia Ren, Xiang Geng, Mengjie Li, Zhongjie Tatem, Andrew J Hay, Simon I Yu, Hongjie The changing epidemiology of dengue in China, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data |
title | The changing epidemiology of dengue in China, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data |
title_full | The changing epidemiology of dengue in China, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data |
title_fullStr | The changing epidemiology of dengue in China, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data |
title_full_unstemmed | The changing epidemiology of dengue in China, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data |
title_short | The changing epidemiology of dengue in China, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data |
title_sort | changing epidemiology of dengue in china, 1990-2014: a descriptive analysis of 25 years of nationwide surveillance data |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4431043/ https://www.ncbi.nlm.nih.gov/pubmed/25925417 http://dx.doi.org/10.1186/s12916-015-0336-1 |
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