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Effects of Climate and Rodent Factors on Hemorrhagic Fever with Renal Syndrome in Chongqing, China, 1997–2008

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  • Yuntao Bai
  • Zhiguang Xu
  • Bo Lu
  • Qinghua Sun
  • Wenge Tang
  • Xiaobo Liu
  • Weizhong Yang
  • Xinyi Xu
  • Qiyong Liu

Abstract

China has the highest global incidence of hemorrhagic fever with renal syndrome (HFRS), constituting 90% of the cases in the world. Chongqing, located in the Three Gorges Reservoir Region, has been experiencing differences in the occurrence of HFRS from 1997 to 2008. The current study was designed to explore the effects of climate and rodent factors on the transmission of HFRS in Chongqing. Data on monthly HFRS cases, rodent strains, and climatic factors were collected from 1997 to 2008. Spatio-temporal analysis indicated that most HFRS cases were clustered in central Chongqing and that the incidence of HFRS decreased from 1997 to 2008. Poisson regression models showed that temperature (with lagged months of 0 and 5) and rainfall (with 2 lagged months) were key climatic factors contributing to the transmission of HFRS. A zero-inflated negative binomial model revealed that rodent density was also significantly associated with the occurrence of HFRS in the Changshou district. The monthly trend in HFRS incidence was positively associated with rodent density and rainfall and negatively associated with temperature. Possible mechanisms are proposed through which construction of the dam influenced the incidence of HFRS in Chongqing. The findings of this study may contribute to the development of early warning systems for the control and prevention of HFRS in the Three Gorges Reservoir Region.

Suggested Citation

  • Yuntao Bai & Zhiguang Xu & Bo Lu & Qinghua Sun & Wenge Tang & Xiaobo Liu & Weizhong Yang & Xinyi Xu & Qiyong Liu, 2015. "Effects of Climate and Rodent Factors on Hemorrhagic Fever with Renal Syndrome in Chongqing, China, 1997–2008," PLOS ONE, Public Library of Science, vol. 10(7), pages 1-12, July.
    • Handle: RePEc:plo:pone00:0133218
    DOI: 10.1371/journal.pone.0133218
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    Cited by:

    1. Xing-Hua Bai & Cheng Peng & Tao Jiang & Zhu-Min Hu & De-Sheng Huang & Peng Guan, 2019. "Distribution of geographical scale, data aggregation unit and period in the correlation analysis between temperature and incidence of HFRS in mainland China: A systematic review of 27 ecological studi," PLOS Neglected Tropical Diseases, Public Library of Science, vol. 13(8), pages 1-13, August.
    2. Shujuan Li & Lingli Zhu & Lidan Zhang & Guoyan Zhang & Hongyan Ren & Liang Lu, 2023. "Urbanization-Related Environmental Factors and Hemorrhagic Fever with Renal Syndrome: A Review Based on Studies Taken in China," IJERPH, MDPI, vol. 20(4), pages 1-20, February.
    3. Chi-Jeng Hsieh & Chuan-Wang Li & Chun-An Cheng & Ding-Chung Wu & Wen-Chih Wu & Fu-Huang Lin & Yu-Ching Chou & Chia-Peng Yu, 2020. "Epidemiologic Characteristics of Domestic Patients with Hemorrhagic Fever with Renal Syndrome in Taiwan: A 19-Year Retrospective Study," IJERPH, MDPI, vol. 17(15), pages 1-13, July.

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