ArticleParasitology research2015
Natural infection of free-range chickens with the ascarid nematode Toxocara sp.
Article in Parasitology research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 30 citations in OpenAlex.
- Field efficacy and safety evaluation of a novel chewable tablet (Credelio Quattro™) containing lotilaner, moxidectin, praziquantel, and pyrantel against gastrointestinal nematode infections in dogs in the USA.Parasites & vectors · 2025Article
- Understanding the research and practical needs required to control toxocariasis in Iran.Parasite epidemiology and control · 2024Review
- Prevalence, Infection, and Risk to Human Beings ofVeterinary sciences · 2024Review
- Detection of Toxocara species larvae in four Iranian free-range broiler farms.BMC veterinary research · 2022Article
- Brain food: rethinking food-borne toxocariasis.Parasitology · 2022Review
- Detection of larvae of Toxocara cati and T. tanuki from the muscles of free-ranging layer farm chickens.Parasitology research · 2021Article
- Human Toxocariasis: 2010 to 2020 Contributions from Brazilian Researchers.Research and reports in tropical medicine · 2021Review
- Saccharomyces boulardii reduces the mean intensity of infection in mice caused by the consumption of liver contaminated by Toxocara canis.Parasitology research · 2020Article
- Dispersion and infectivity of Toxocara canis eggs after passage through chicken intestine.Parasitology research · 2018Article
- Seroprevalence and associated risk factors of Toxocara infection in Korean, Manchu, Mongol, and Han ethnic groups in northern China.Epidemiology and infection · 2016Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Human toxocariasis may be acquired by eating raw chicken liver. However, there are no reports on the prevalence of natural infection of chickens with Toxocara. The aim of this study was to evaluate the presence of anti-Toxocara antibodies as indicators of natural infection with Toxocara, in free-range chickens from Espírito Santo State, Brazil. An ELISA test with secretory and excretory Toxocara canis antigens was used. Negative controls were 20 industrial chickens reared in a high hygiene standard environment. Positive control serum was from a chicken infected with embryonated eggs of T. canis. Sera were adsorbed with Ascaridia galli extract to reduce cross-reactivity. Cut-off was the mean plus four times the standard deviation of optical density (OD) in negative group. One hundred and fifty-seven sera from free-range chicken were investigated. Results showed 58.5% of the chickens were positive with ELISA test; 12.7% had OD over the positive control and may be considered as true infected chickens. The results between the cut-off and the positive control may include infections with low titers of antibodies or may represent serum scar of past infection or may be the result of cross-reaction with other nematodes rather than A. galli which is used for the adsorption of sera. In conclusion, high prevalence of Toxocara sp. antibodies demonstrates natural infection of free-range chickens from Espírito Santo State which may represent a risk of infection with this nematode in people who have the habit of eating raw or undercooked chicken meat or viscera. The results also suggest that chickens may be useful as sentinels to detect soil contaminated with Toxocara eggs.
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