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Patterns of Bacillary Dysentery in China, 2005–2010

Although the incidence of bacillary dysentery in China has been declining progressively, a considerable disease burden still exists. Few studies have analyzed bacillary dysentery across China and knowledge gaps still exist in the aspects of geographic distribution and ecological drivers, seasonality...

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Detalles Bibliográficos
Autores principales: Zhang, Han, Si, Yali, Wang, Xiaofeng, Gong, Peng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772184/
https://www.ncbi.nlm.nih.gov/pubmed/26828503
http://dx.doi.org/10.3390/ijerph13020164
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author Zhang, Han
Si, Yali
Wang, Xiaofeng
Gong, Peng
author_facet Zhang, Han
Si, Yali
Wang, Xiaofeng
Gong, Peng
author_sort Zhang, Han
collection PubMed
description Although the incidence of bacillary dysentery in China has been declining progressively, a considerable disease burden still exists. Few studies have analyzed bacillary dysentery across China and knowledge gaps still exist in the aspects of geographic distribution and ecological drivers, seasonality and its association with meteorological factors, urban-rural disparity, prevalence and distribution of Shigella species. Here, we performed nationwide analyses to fill the above gaps. Geographically, we found that incidence increased along an east-west gradient which was inversely related to the economic conditions of China. Two large endemically high-risk regions in western China and their ecological drivers were identified for the first time. We characterized seasonality of bacillary dysentery incidence and assessed its association with meteorological factors, and saw that it exhibits north-south differences in peak duration, relative amplitude and key meteorological factors. Urban and rural incidences among China’s cities were compared, and disparity associated with urbanization level was invariant in most cities. Balanced decrease of urban and rural incidence was observed for all provinces except Hunan. S. flexneri and S. sonnei were identified as major causative species. Increasing prevalence of S. sonnei and geographic distribution of Shigella species were associated with economic status. Findings and inferences from this study draw broader pictures of bacillary dysentery in mainland China and could provide useful information for better interventions and public health planning.
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spelling pubmed-47721842016-03-08 Patterns of Bacillary Dysentery in China, 2005–2010 Zhang, Han Si, Yali Wang, Xiaofeng Gong, Peng Int J Environ Res Public Health Article Although the incidence of bacillary dysentery in China has been declining progressively, a considerable disease burden still exists. Few studies have analyzed bacillary dysentery across China and knowledge gaps still exist in the aspects of geographic distribution and ecological drivers, seasonality and its association with meteorological factors, urban-rural disparity, prevalence and distribution of Shigella species. Here, we performed nationwide analyses to fill the above gaps. Geographically, we found that incidence increased along an east-west gradient which was inversely related to the economic conditions of China. Two large endemically high-risk regions in western China and their ecological drivers were identified for the first time. We characterized seasonality of bacillary dysentery incidence and assessed its association with meteorological factors, and saw that it exhibits north-south differences in peak duration, relative amplitude and key meteorological factors. Urban and rural incidences among China’s cities were compared, and disparity associated with urbanization level was invariant in most cities. Balanced decrease of urban and rural incidence was observed for all provinces except Hunan. S. flexneri and S. sonnei were identified as major causative species. Increasing prevalence of S. sonnei and geographic distribution of Shigella species were associated with economic status. Findings and inferences from this study draw broader pictures of bacillary dysentery in mainland China and could provide useful information for better interventions and public health planning. MDPI 2016-01-27 2016-02 /pmc/articles/PMC4772184/ /pubmed/26828503 http://dx.doi.org/10.3390/ijerph13020164 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Han
Si, Yali
Wang, Xiaofeng
Gong, Peng
Patterns of Bacillary Dysentery in China, 2005–2010
title Patterns of Bacillary Dysentery in China, 2005–2010
title_full Patterns of Bacillary Dysentery in China, 2005–2010
title_fullStr Patterns of Bacillary Dysentery in China, 2005–2010
title_full_unstemmed Patterns of Bacillary Dysentery in China, 2005–2010
title_short Patterns of Bacillary Dysentery in China, 2005–2010
title_sort patterns of bacillary dysentery in china, 2005–2010
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772184/
https://www.ncbi.nlm.nih.gov/pubmed/26828503
http://dx.doi.org/10.3390/ijerph13020164
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