Prevalence of in Retail Fresh Meat Products from Free-range Chickens in Spain.

J Vet Res

Instituto Agroalimentario de Aragón - IA2 (Universidad de Zaragoza - CITA), Veterinary Faculty, 50013 Zaragoza, Spain.

Published: December 2021

Introduction: is one of the most prevalent zoonotic protozoan parasites worldwide and affects the vast majority of warm-blooded animal species, including humans. Postnatal infection in humans occurs through the ingestion of sporulated oocysts or the oral intake of parasite tissue cysts during the consumption of raw or undercooked meat. In this regard, given their high exposure to oocysts, chickens () raised on the ground constitute a potential source of .

Material And Methods: For the first time in Spain, a survey was undertaken in commercial retail free-range poultry. A total of 50 thighs from different animals were analysed. The samples were homogenised and an acid pepsin digestion procedure was applied prior to molecular analysis. DNA was isolated from meat by qPCR. Two sets of primers were used for DNA amplification targeting the specific sequence of a 529 bp repeat element and another set of primers was utilised for the surface antigen protein-1 gene.

Results: DNA extracted from 5 out of 50 tissue samples was positive for both genes by qPCR amplification.

Conclusion: The 10% prevalence of infection found in commercial free-range chickens raises public health issues.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8775739PMC
http://dx.doi.org/10.2478/jvetres-2021-0052DOI Listing

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