Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control · 2021
[Epidemiology of echinococcosis in Serthar County of Sichuan Province in 2019].
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Yu W J, Wang Q, Yang Y, Yang L, Huang Y, Danba Z L, Zhong B
Аннотация
OBJECTIVE: To investigate the epidemiology of echinococcosis in Serthar County, Sichuan Province, so as to provide insights into optimization of echinococcosis control measures.
METHODS: The prevalence of human echinococcosis was surveyed among permanent residents living in Serthar County at ages of over 2 years from 2016 to 2019, and the prevalence of Echinococcus infections was surveyed in owned dogs, yaks and rodents in 2019. The epidemiological features of echinococcosis in humans and animals were descriptively analyzed.
RESULTS: The overall prevalence of human echinococcosis was 3.72% (1 613/43 362) in Serthar County from 2016 to 2019, and the prevalence rates of cystic echinococcosis, alveolar echinococcosis and mixed infections of cystic echinococcosis and alveolar echinococcosis were 1.72% (745/43 362), 1.98% (860/43 362) and 0.02% (8/43 362), respectively. The prevalence of human echinococcosis was higher in pastoral areas (4.13%, 1 577/38 149) than in semi-agricultural and semi-pastoral areas (0.69%, 36/5 213) (χ2 = 151.82, P < 0.05); however, there was no significant difference in the prevalence between men (3.76%, 819/21 787) and women (3.68%, 794/21 575) (χ2 = 0.19, P > 0.05). Cystic echinococcosis was the predominant type in students with echinococcosis (93.78%, 422/450), while alveolar echinococcosis was the predominant type in herders with echinococcosis (72.16%, 801/1 110). There was a significant difference in the constituent ratio of echinococcosis types between students and herders (χ2 = 588.57, P < 0.05). In addition, higher prevalence of echinococcosis was detected in nomadic populations (4.58%, 1 008/22 021) than in community-dwelling populations (2.83%, 605/21 341) (χ2 = 91.88, P < 0.05). The Echinococcus copro-antigen-positive rate was 0.19% (4/2 157) in owned dogs, and the detection rate of echinococcosis was 8.00% (16/200) in yaks and 3.10% (31/1 000) in rodents in 2019.
CONCLUSIONS: Echinococcosis is highly prevalent in Serthar County, Sichuan Province. Sustained management of source of Echinococcus infections, improved treatment of echinococcosis patients and timely health education for nomadic populations are recommended.
METHODS: The prevalence of human echinococcosis was surveyed among permanent residents living in Serthar County at ages of over 2 years from 2016 to 2019, and the prevalence of Echinococcus infections was surveyed in owned dogs, yaks and rodents in 2019. The epidemiological features of echinococcosis in humans and animals were descriptively analyzed.
RESULTS: The overall prevalence of human echinococcosis was 3.72% (1 613/43 362) in Serthar County from 2016 to 2019, and the prevalence rates of cystic echinococcosis, alveolar echinococcosis and mixed infections of cystic echinococcosis and alveolar echinococcosis were 1.72% (745/43 362), 1.98% (860/43 362) and 0.02% (8/43 362), respectively. The prevalence of human echinococcosis was higher in pastoral areas (4.13%, 1 577/38 149) than in semi-agricultural and semi-pastoral areas (0.69%, 36/5 213) (χ2 = 151.82, P < 0.05); however, there was no significant difference in the prevalence between men (3.76%, 819/21 787) and women (3.68%, 794/21 575) (χ2 = 0.19, P > 0.05). Cystic echinococcosis was the predominant type in students with echinococcosis (93.78%, 422/450), while alveolar echinococcosis was the predominant type in herders with echinococcosis (72.16%, 801/1 110). There was a significant difference in the constituent ratio of echinococcosis types between students and herders (χ2 = 588.57, P < 0.05). In addition, higher prevalence of echinococcosis was detected in nomadic populations (4.58%, 1 008/22 021) than in community-dwelling populations (2.83%, 605/21 341) (χ2 = 91.88, P < 0.05). The Echinococcus copro-antigen-positive rate was 0.19% (4/2 157) in owned dogs, and the detection rate of echinococcosis was 8.00% (16/200) in yaks and 3.10% (31/1 000) in rodents in 2019.
CONCLUSIONS: Echinococcosis is highly prevalent in Serthar County, Sichuan Province. Sustained management of source of Echinococcus infections, improved treatment of echinococcosis patients and timely health education for nomadic populations are recommended.