CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES >

2022 , Vol. 40 >Issue 4: 475 - 480

DOI: https://doi.org/10.12140/j.issn.1000-7423.2022.04.009

ORIGINAL ARTICLES

The endemic status of echinococcosis in China from 2004 to 2020

  • HAN Shuai ,
  • KUI Yan ,
  • XUE Cui-zhao ,
  • ZHANG Ya-lan ,
  • ZHANG Ben-guang ,
  • LI Qi-yang ,
  • WANG Ting ,
  • DAI Yang ,
  • YUAN Yi ,
  • TAO Wei ,
  • ZHU Ai-ya ,
  • LI Zheng-xiang ,
  • WANG Zi-jiang ,
  • TANG Lei ,
  • WU Wen-ting ,
  • XIE Han-guo ,
  • YAO Li-nong ,
  • YANG Yi-chao ,
  • WU Wei-ping
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  • 1. National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research); NHC Key Laboratory of Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Shanghai 200025, China
    2. Henan Province Center for Disease Control and Prevention, Zhengzhou 450016, China
    3. Shandong Institute of Parasitic Diseases, Jining 272033, China
    4. Anhui Provincial Institute of Parasitic Disease, Hefei 230000, China
    5. Shanxi Province Center for Disease Control and Prevention, Taiyuan 030000, China
    6. Jiangsu Institute of Parasitic Diseases,Wuxi 214064, China
    7. Chongqing Municipality Center for Disease Control and Prevention, Chongqing 400000, China
    8. Henbei Province Center for Disease Control and Prevention, Shijiazhuang 050000, China
    9. Guizhou Province Center for Disease Control and Prevention, Guiyang 550000, China
    10. Hunan Province Center for Disease Control and Prevention, Changsha 410000, China
    11. Liaoning Province Center for Disease Control and Prevention, Shenyang 110000, China
    12. Heilongjiang Province Center for Disease Control and Prevention, Haerbin 150000, China
    13. Beijing Center for Disease Control and Prevention, Beijing 100000, China
    14. Fujian Province Center for Disease Control and Prevention, Fuzhou 350000, China
    15. Zhejiang Province Center for Disease Control and Prevention, Hangzhou 310000, China
    16. Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning 530000, China
*E-mail: wuwp@nipd.chinacdc.cn

Received date: 2021-04-06

  Revised date: 2021-04-27

  Online published: 2022-09-07

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Abstract

Objective To analyze the endemic situation and epidemiological characteristics of echinococcosis in China, and provide a scientific basis for optimizing control strategy. Methods From the Infectious Diseases Report System of the Chinese Center for Disease Control and Prevention, information of nationwide echinococcosis cases reported in 2004 to 2020 were collected, and descriptively analyzed on time distribution, the regional distribution, and demographic distribution, using Microsoft Office 2016 software. Results From 2004 to 2020, a total of 66 040 cases of echinococcosis were reported in 31 provinces (municipalities and autonomous regions), among which 65 340 cases were reported in nine endemic provinces (Xinjiang, Sichuan, Qinghai, Gansu, Ningxia, Tibet, Inner Mongolia, Shaanxi and Yunnan) and 700 cases were reported in 22 non-endemic provinces, accounting for 98.9% and 1.1% of the total, respectively. Among the nationwide total, 31 494 male cases and 34 546 female cases were recorded. The toal number of reported cases of echinococcosis was on the increase from 991 in 2004 to 3 650 on 2020, showing an increasing trend (z = 2.27, P < 0.05). The number of reported cases of echinococcosis from non-endemic provinces in 2004 was 17 cases, which increased to 56 in 2020, showing an increasing trend (z = 4.1675, P < 0.05). The age distribution indicated that majority (91.3%) of cases were at the age goup of ≥ 20, whereas 11 cases were at the age group of under one year old, and 200 cases were at 85 years old or older. The occupation distribution demonstrated that herdsmen and farmers accounted for 72.8% (48 074/66 040) of the total, housework and unemployed 5.5% for (3 606/66 040); and students for 4.6% (3 034/66 040). A total of 56 cases were reported in non-epidemic areas in 2020, including 38 imported cases. Henan reported the most cases with 16, Xinjiang imported 24 cases, and 10 provinces had suspected local cases. Conclusion The endemicity of echinococcosis in nine west provinces remains high. The number of reported cases showed increasing trend. Herdsmen, farmerd, youth and middle age are the population with high prevalence.

Key words： Echinococcosis; Endemic situation; Endemic areas; Non-endemic areas

Cite this article

HAN Shuai , KUI Yan , XUE Cui-zhao , ZHANG Ya-lan , ZHANG Ben-guang , LI Qi-yang , WANG Ting , DAI Yang , YUAN Yi , TAO Wei , ZHU Ai-ya , LI Zheng-xiang , WANG Zi-jiang , TANG Lei , WU Wen-ting , XIE Han-guo , YAO Li-nong , YANG Yi-chao , WU Wei-ping . The endemic status of echinococcosis in China from 2004 to 2020[J]. CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES, 2022 , 40(4) : 475 -480 . DOI: 10.12140/j.issn.1000-7423.2022.04.009

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