Analysis of echinococcosis in the population and canine Echinococcus infection in Yushu City, Qinghai Province in 2023
10.3760/cma.j.cn231583-20241009-00361
- VernacularTitle:2023年青海省玉树市人群棘球蚴病及犬棘球绦虫感染情况分析
- Author:
Xiaojin MO
1
;
Chunhua GONG
;
Wentao GUO
;
Gengcheng HE
;
Bin JIANG
;
Qiufeng LAN
;
Xiao MA
;
Yufang LIU
;
Guirong ZHENG
;
Tian TIAN
;
Shijie YANG
;
Shusheng WU
;
Ting ZHANG
;
Xiaonong ZHOU
Author Information
1. 中国疾病预防控制中心寄生虫病预防控制所（国家热带病研究中心）传染病溯源预警与智能决策全国重点实验室 国家卫生健康委员会寄生虫病原与媒介生物学重点实验室 世界卫生组织热带病合作中心 科技部国家级热带病国际研究中心，上海 200025
- Publication Type:Journal Article
- Keywords:
Echinococcosis;
Echinococcus;
Population;
Dogs;
Epidemic status
- From:
Chinese Journal of Endemiology
2025;44(8):668-673
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study echinococcosis in the population and canine Echinococcus infection in Yushu City, Qinghai Province, and to explore the current epidemic situation and main transmission species of Echinococcus. Methods:In June 2023, a multi-stage sampling method was used to select 2 villages each in Shanglaxiu Township and Longbao Town, Yushu City, Qinghai Province. Each village included at least 100 permanent residents who had lived locally for at least 1 year and were 2 years old or older as the survey subjects. Enzyme-linked immunosorbent assay (ELISA) was used to detect serum antibodies against Echinococcus larvae in the population, and B-mode ultrasound was used for abdominal organ scanning. Meanwhile, on the main roads of Shanglaxiu Township and Longbao Town, canine feces were collected in designated areas at intervals. ELISA was used to detect the antigen of canine fecal Echinococcus, and PCR was used to detect the types of parasites ( Echinococcus multilocularis, Echinococcus granulosus and Echinococcus shiquicus). Results:A total of 511 residents were investigated in Yushu City, and the positive rate of serum Echinococcus larvae antibodies in the population was 26.22% (134/511), and the detection rate of echinococcosis B-mode ultrasound was 1.37% (7/511). Among them, the detection rates of B-mode ultrasound for cystic echinococcosis (CE) and alveolar echinococcosis (AE) were 1.17% (6/511) and 0.20% (1/511), respectively. The positive rate of Echinococcus antigen in 543 canine feces detected by ELISA was 12.89% (70/543). PCR was used to test 497 canine feces, and the detection rate of Echinococcus was 3.02% (15/497). Among them, the detection rate of Echinococcus multilocularis was higher than that of Echinococcus granulosus [2.82% (14/497) vs 0.20% (1/497)], and the difference was statistically significant (χ 2 = 11.44, P < 0.001). No Echinococcus shiquicus was detected. Conclusions:The positive rates of Echinococcus larvae antibodies in the population and canine Echinococcus antigen in Yushu City, Qinghai Province are both relatively high. There is a mixed epidemic of CE and AE, with Echinococcus multilocularis being the main species.
