Rapid increase in scrub typhus incidence in Mainland China, 2006-2014

Wu, Yi-Cheng, Qian, Quan, Magalhaes, Ricardo J. Soares, Han, Zhi-Hai, Haque, Ubydul, Weppelmann, Thomas A., Hu, Wen-biao, Liu, Yun-Xi, Sun, Yan-Song, Zhang, Wen-Yi, & Li, Shen-Long (2016) Rapid increase in scrub typhus incidence in Mainland China, 2006-2014. American Journal of Tropical Medicine and Hygiene, 94(3), pp. 532-536.

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Scrub typhus is a vector-borne disease, which has recently reemerged in China. In this study, we describe the distribution and incidence of scrub typhus cases in China from 2006 to 2014 and quantify differences in scrub typhus cases with respect to sex, age, and occupation. The results of our study indicate that the annual incidence of scrub typhus has increased during the study period. The number of cases peaked in 2014, which was 12.8 times greater than the number of cases reported in 2006. Most (77.97%) of the cases were reported in five provinces (Guangdong, Yunnan, Anhui, Fujian, and Shandong). Our study also demonstrates that the incidence rate of scrub typhus was significantly higher in females compared to males (P < 0.001) and was highest in the 60–69 year age group, and that farmers had a higher incidence rate than non farmers (P < 0.001). Different seasonal trends were identified in the number of reported cases between the northern and southern provinces of China. These findings not only demonstrate that China has experienced a large increase in scrub typhus incidence, but also document an expansion in the geographic distribution throughout the country.

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ID Code: 92269
Item Type: Journal Article
Refereed: Yes
Keywords: Scrub Typhus, Seasonal trends, China
DOI: 10.4269/ajtmh.15-0663
ISSN: 0002-9637
Divisions: Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: 2015 The American Society of Tropical Medicine and Hygiene
Deposited On: 25 Jan 2016 06:02
Last Modified: 17 May 2016 03:03

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