FROM ENDEMIC TO PRELIMINARY CONTROL--SPECIAL REPORTS ON ECHINOCOCCOSIS IN SICHUAN PROVINCE

Analysis of echinococcosis cases reported in non-endemic counties of Sichuan Province

  • Ren-xin YAO ,
  • Qian WANG ,
  • Sha LIAO ,
  • Guang-jia ZHANG ,
  • Yan HUANG ,
  • Wen-jie YU ,
  • Wei HE ,
  • Qi WANG ,
  • Rui-rui LI ,
  • Liu YANG
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  • Sichuan Center for Disease Control and Prevention, Chengdu 610041, China

Received date: 2021-01-04

  Revised date: 2021-03-01

  Online published: 2021-04-30

Supported by

Sichuan Science and Technology Project(2018SZ0116)

Abstract

Objective To understand the epidemic distribution and epidemiological characteristics of reported cases in non-endemic counties of Sichuan Province. Methods The basic information, disease type and epidemiological history of the reported cases in non-endemic counties (cities/districts) of Sichuan Province from 2015 to 2019 were collected. WPS Excel 2019 software was used to establish a database, and the prevalence was analyzed. Results A total of 165 cases of echinococcosis were reported from 148 non-endemic counties in Sichuan Province from 2015 to 2019, which were distributed in 57 counties (districts) of 14 cities (prefectures). The number of cases was highest in 2016 (40 cases), and decreased thereafter. The number of reported cases in Chengdu was the highest (61 cases, 37.0%). There were 114 cases (69.1%) from villages and towns. The cases were reported in all age groups, with the highest proportion(52.7%) in the 41-60 years group (87/165). There were 103 males and 62 females, with a male-to-female ratio of 1.7 ∶ 1. The occupation distribution showed that the number of cases was higher in farmers and workers (58 and 28 cases), accounting for 52.1% (86/165). The numbers of cases of cystic and alveolar echinococcosis was 55 and 34, respectively, and the type of 76 cases was not classified. Of the 119 cases traced, 62.2% (74/119) had visited endemic areas of echinococcosis. Among them, 29 cases had visited endemic counties in Sichuan Province, and the most visited endemic areas outside Sichuan Province were Xinjiang (20 cases) and Tibet (15 cases). Conclusion The cases reported in the non-endemic counties of Sichuan Province from 2015 to 2019 were mostly from Chengdu City, townships, males, age group 41-60 years, and farmers, and most of them had visited the endemic areas of echinococcosis in Xinjiang and Tibet.

Cite this article

Ren-xin YAO , Qian WANG , Sha LIAO , Guang-jia ZHANG , Yan HUANG , Wen-jie YU , Wei HE , Qi WANG , Rui-rui LI , Liu YANG . Analysis of echinococcosis cases reported in non-endemic counties of Sichuan Province[J]. CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES, 2021 , 39(2) : 166 -170 . DOI: 10.12140/j.issn.1000-7423.2021.02.007

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