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Volume 20, Number 11—November 2014
Dispatch

Increasing Prevalence and Intensity of Foodborne Clonorchiasis, Hengxian County, China, 1989–2011

Men-Bao Qian, Ying-Dan Chen, Yi-Chao Yang, Ming-Fei Lu, Zhi-Hua Jiang, Kang Wei, Si-Liang Wei, Chang-Hai Zhou, Long-Qi Xu, and Xiao-Nong ZhouComments to Author 
Author affiliations: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, China (M.-B. Qian, Y.-D. Chen, C.-H. Zhou, L.-Q. Xu, X.-N. Zhou); Key Laboratory of Parasite and Vector Biology, Ministry of Health, Shanghai (M.-B. Qian, X.-N. Zhou); Guangxi Center for Disease Control and Prevention, Nanning, China (Y.-C. Yang, Z.-H. Jiang); Hengxian Center for Disease Control and Prevention, Hengxian, China (M.-F. Lu, K. Wei, S.-L. Wei)

Main Article

Table 1

Standardized prevalence of parasitic diseases, as determined from 3 surveys, Hengxian County, China, 1989–2011*

Infection Prevalence, %
Survey 1, 1989
 Survey 2, 2002
 Survey 3, 2011
Female, n = 1,134† Male, n = 1,227‡ Total, n = 2,361§ Female, n = 775¶ Male, n = 925‖ Total, n = 1,700# Female, n = 1,641 Male, n = 1,796 Total, n = 3,437
Clonorchiasis
 10.4
 28.5
 19.7
20.8
 39.6
 30.5
29.2
 62.9
 46.5
Soil-transmitted helminthiases** 86.2 86.3 86.3 29.5 20.9 25.1 9.4 4.7 7.0
Roundworms 70.1 69.6 69.8 16.9 10.9 13.8 0.5 0.4 0.5
Whipworms 57.0 54.5 55.7 13.1 9.4 11.2 1.7 1.0 1.4
Hookworms 27.8 21.1 24.3 7.8 4.9 6.3 7.5 3.2 5.3

*Population data were derived from the 2010 census for Hengxian County.
†117 children <5 years of age were excluded.
‡145 children <5 years of age were excluded.
§262 children <5 years of age were excluded.
¶24 children <5 years of age were excluded.
‖24 children <5 years of age were excluded.
#48 children <5 years of age were excluded.
**Some participants were infected with >1 type of helminth.

Main Article

Page created: October 17, 2014
Page updated: October 17, 2014
Page reviewed: October 17, 2014
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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