Analysis of soil-borne nematode infection status among rural communities in Yubei, Chongqing
10.3969/j.issn.1005-0507.2026.02.002
- VernacularTitle:重庆市渝北区农村土源性线虫感染状况分析
- Author:
Dan JIANG
1
;
Yong-dong HAO
1
;
Sen-ping YANG
1
;
Xiao-yuan SU
1
;
Hua-jun BAI
1
;
Bo LYU
1
;
Ya-ling RAN
1
;
He-yi GUAN
1
;
Ling HU
1
Author Information
1. Yubei District Center for Disease Control and Prevention, Yubei 401120, Chongqing, China
- Publication Type:Journal Article
- Keywords:
Chongqing;
Soil-transmitted nematodes;
Infection rates;
Survey
- From:
Acta Parasitologica et Medica Entomologica Sinica
2026;33(2):85-89
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the infection status and epidemic trends of soil-borne nematode infections in Yubei, Chongqing City, in 2010,2021, and 2022. Methods The local populations from four survey sites of four towns in 2010 and five sites of five towns in 2021 and 2022 were surveyed regarding their basic information using a unified form. Fecal samples of the participants were collected and tested for soil-borne nematode infections using the modified Kato-Katz thick smear method. Results In 2010, 2 049 participants were surveyed, followed by 1 000 participants in 2021 and 2022. The overall prevalence of parasitic infections declined significantly from 3.86% to 0.20%. In 2010, soil-transmitted nematode included hookworms(3.81%) and roundworms(0.29%). In 2021, the infection rates of roundworms and hookworms were 1.70% and 0.10% respectively. Notably, only Ascaris was identified in 2022(0.20%). The≥60 age group consistently exhibited the highest infection rates across all surveys, followed by the 40-59 age group. The infection rates of males in the three surveys were 3.31%,1.92%, and 0.20% respectively, and those of females were 4.37%, 1.46%, and 0.20% respectively. There was no statistically significant difference in the infection rates between males and females. Educational attainment was inversely associated with infection; in 2010, the highest prevalence was observed among those with primary education or below, whereas in 2021, illiterate or semi-literate individuals showed the highest susceptibility. The occupational distribution of infections in 2010 indicated that retirees (8.33%), farmers(4.86%), and homemakers or unemployed individuals(3.45%)were the most affected. However, in 2021 and 2022, farmers emerged as the predominant occupational group with soil-transmitted nematode infections. Conclusions The infection rate of soil-borne nematodes showed a decreasing trend in Yubei, and the infection species changed from hookworms in 2010 to Ascaris in 2022. Farmers, the elderly, and people with low education levels should continue to be the focus of preventive and control efforts.
