AI Article Synopsis
- A study in Senegal aimed to determine the prevalence of a specific infection in free-range chickens, which can indicate environmental contamination due to their ground-feeding habits.
- It found that 7.67% of the chickens tested positive for the infection, with higher odds linked to those drinking well water and hens with chicks.
- The researchers suggest that the potential contamination from well water could impact both chickens and humans, pointing to the need for further investigation in future studies.
Article Abstract
In sub-Saharan Africa, few studies have addressed the environmental determinants of the incidence of infection. Free-range chickens are regarded as sensitive indicators for environmental contamination with oocysts due to their ground-feeding behavior and have been used as sentinels. A cross-sectional study was conducted from January to April 2018 to estimate the seroprevalence of infection in free-range chickens from Senegal, West Africa, using the modified agglutination test. Sampling was performed in two regions of the country: Saint-Louis, a Sahelian area in the North, and Kedougou, a forest and rainy area in the South. A questionnaire was administered to chicken owners to assess potential risk factors for seropositivity, and univariable and multivariable logistic regression analyses were used to determine the statistical significance of risk factors. The seroprevalence in chickens was 7.67% (51/665; 95% confidence interval [CI]: 5.51-9.52). The multivariable logistic regression model indicated that the odds to test seropositive was higher in chickens provided well water (odds ratio [OR] = 3.17, 95% CI: 1.45-6.93; = 0.004) than in chickens provided tap water, and in hens having chicks (OR = 80.15, 95% CI: 22.79-281.95; < 0.001) than in chickens (male or female) not having chicks. The possible role of contaminated well water in the acquisition of infection in chickens-and hence in human-merits consideration and should be addressed in future studies.
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| http://dx.doi.org/10.1089/vbz.2019.2481 | DOI Listing |
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