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.

这项工作旨在调查马（Equus ferus caballus ）中旋毛虫感染的流行情况。) 由墨西哥五个不同社会经济区域的农村屠宰场处理。血清样本是在东部、中南部和西部地区通过非概率便利抽样获得的（各 100 个样本）。此外，还从东部 (n = 45)、东南部 (n = 88)、中南部 (n = 39) 和西南 (n = 11) 地区收集了肌肉组织样本。通过蛋白质印迹测定抗体，并通过人工消化检查肌肉组织。获得了 2% 的全球抗体流行率。从区域来看，东部地区的流行率为 5%，中南部地区为 1%。西部地区未检测到抗体，肌肉组织样本中未发现幼虫。这些发现支持旋毛虫的低含量 墨西哥马，这可以对墨西哥马肉贸易产生积极影响。