Statistical approach to Trichinella infection in horses handled by rural slaughterhouses across five distinctive socioeconomic regions in Mexico

This work aimed to investigate the prevalence of Trichinella infection in horses (Equus ferus caballus) handled by rural slaughterhouses across five distinctive socioeconomic regions in Mexico. Serum samples were obtained by non-probabilistic convenience sampling in the Eastern, Southern Central and...

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Published in:Revista argentina de microbiología 2020-10, Vol.52 (4), p.288-292
Main Authors: Solís-Hernández, David, Saucedo-Gutiérrez, Karla-Lorena, Meza-Lucas, Antonio, Gómez-de-Anda, Fabián-Ricardo, Medina-Lerena, Miriam-Susana, García-Rodea, Ricardo, Corona-Souza, María-Teresa, Pérez-Ramírez, Miguel-Ángel, Vega-Sánchez, Vicente, de-la-Rosa-Arana, Jorge-Luis
Format: Article
Language:English
Subjects:
Antibody
Anticuerpo
Caballo
Carne
Horse
Meat
Mexico
México
Trichinella
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Summary:This work aimed to investigate the prevalence of Trichinella infection in horses (Equus ferus caballus) handled by rural slaughterhouses across five distinctive socioeconomic regions in Mexico. Serum samples were obtained by non-probabilistic convenience sampling in the Eastern, Southern Central and Western regions (100 samples of each). Additionally, muscle tissue samples were collected from the East (n=45), Southeastern (n=88), Southern Central (n=39) and Southwestern (n=11) regions. Antibodies were determined by Western blot and the muscle tissue was examined by artificial digestion. A global antibody prevalence of 2% was obtained. Regionally, a prevalence of 5% was observed in the East and 1% in the Southern Central region. No antibodies were detected in the West region and no larvae were found in the muscle tissue samples. These findings support the low presence of Trichinella in Mexican horses, which can positively impact the Mexican horse meat trade. Se investigó la prevalencia de Trichinella en caballos (Equus ferus caballus) de mataderos rurales en cinco regiones socioeconómicas de México. Los sueros se obtuvieron por muestreo de conveniencia no probabilístico en las regiones Este, Centrosur y Oeste (100 muestras de cada una). Además se colectaron muestras de tejido muscular de animales de las regiones Este (n=45), Centro Sur (n=39), Sudeste (n=88) y Sudoeste (n=11). Los anticuerpos se determinaron por Western blot y el tejido muscular se examinó por digestión artificial. Se obtuvo una prevalencia global de anticuerpos del 2%. A nivel regional se observó una prevalencia del 5% en el Este y del 1% en el Centrosur. No se detectaron anticuerpos en el Oeste y no se encontraron larvas en el tejido muscular. Los datos respaldan la baja presencia de Trichinella en caballos mexicanos, lo que puede impactar positivamente en su comercio.
ISSN:0325-7541
DOI:10.1016/j.ram.2020.04.001