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The Epidemic Characteristics and Changing Trend of Hemorrhagic Fever with Renal Syndrome in Hubei Province, China

Authors :
Jing Liu
Yun Zhang
Wen Chen
Li Liu
Xixiang Huo
Jia-xin Ling
Hong Fan
Jin-lin Li
Yuan-Yuan Liu
Dong-ying Liu
Fan Luo
Wei Hou
Hairong Xiong
Yi-Hui Zhang
Zhan-qiu Yang
Liang Ge
Source :
PLoS ONE, Vol 9, Iss 3, p e92700 (2014), PLoS ONE
Publication Year :
2014
Publisher :
Public Library of Science (PLoS), 2014.

Abstract

Background Hemorrhagic fever with renal syndrome (HFRS) is caused by different hantaviruses within the Bunyaviridae family. HFRS is a fulminant, infectious disease that occurs worldwide and is endemic in all 31 provinces of China. Since the first HFRS case in Hubei Province was reported in 1957, the disease has spread across the province and Hubei has become one of the seriously affected areas in China with the greatest number of reported HFRS cases in the 1980's. However, the epidemic characteristics of HFRS in Hubei are still not entirely clear and long-term, systematic investigations of this epidemic area have been very limited. Methods The spatiotemporal distribution of HFRS was investigated using data spanning the years 1980 to 2009. The annual HFRS incidence, fatality rate and seasonal incidence between 1980 and 2009 were calculated and plotted. GIS-based spatial analyses were conducted to detect the spatial distribution and seasonal pattern of HFRS. A spatial statistical analysis, using Kulldorff's spatial scan statistic, was performed to identify clustering of HFRS. Results A total of 104,467 HFRS cases were reported in Hubei Province between 1980 and 2009. Incidence of and mortality due to HFRS declined after the outbreak in 1980s and HFRS cases have been sporadic in recent years. The locations and scale of disease clusters have changed during the three decades. The seasonal epidemic pattern of HFRS was characterized by the shift from the unimodal type (autumn/winter peak) to the bimodal type. Conclusions Socioeconomic development has great influence on the transmission of hantaviruses to humans and new epidemic characteristics have emerged in Hubei Province. It is necessary to reinforce preventative measures against HFRS according to the newly-presented seasonal variation and to intensify these efforts especially in the urban areas of Hubei Province.

Details

ISSN :
19326203
Volume :
9
Database :
OpenAIRE
Journal :
PLoS ONE
Accession number :
edsair.doi.dedup.....7610e9ea5911ac1f39712519fa880501