Campylobacteriosis is the most commonly reported gastrointestinal disease in humans in the EU, mainly from poultry meat consumption. C. jejuni is the main species involved in the human disease. However, little is known about the role of swine meat in its epidemiology. Thus, the aim of this study was to assess the epidemiology and antimicrobial resistance of C. jejuni on swine processing at the slaughterhouse. To this end, a total of 21 pig herds were intensively sampled at the slaughterhouse. Campylobacter isolation was based on official method ISO 10272-1:2018, speciation was determined by the hippurate hydrolysis test, and antibiotic susceptibility was performed according to standard disc diffusion assay. The results showed that all batches shed Campylobacter in faeces upon arrival at the slaughterhouse and remained positive at the end of the slaughtering process (42.8%). Moreover, 41.5% of Campylobacter strains isolated were C. jejuni and all of them were resistant to at least one antibiotic, and 96.3% were multidrug-resistant strains. In conclusion, the high level of multidrug-resistant C. jejuni swine batch contamination at the slaughterhouse makes it necessary to include the swine sector in national control programmes to reduce the bacterium and its resistance.

中文翻译：

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多药耐药空肠弯曲杆菌在西班牙东部一间屠宰场的猪加工中

在欧盟，弯曲杆菌病是人类中最常见的胃肠道疾病，主要来自食用禽肉。空肠弯曲杆菌是与人类疾病有关的主要物种。但是，关于猪肉在其流行病学中的作用知之甚少。因此，本研究的目的是评估空肠弯曲杆菌对屠宰场猪加工过程的流行病学和抗药性。为此，在屠宰场对21个猪群进行了密集采样。弯曲杆菌的分离基于官方方法ISO 10272-1：2018，通过马尿酸盐水解试验确定形态，并根据标准椎间盘扩散测定法进行抗生素敏感性分析。结果显示所有批次均脱落到达屠宰场时粪便中的弯曲杆菌属，在屠宰过程结束时仍呈阳性（42.8％）。此外，分离出的弯曲杆菌菌株中有41.5％是空肠弯曲杆菌，并且它们均对至少一种抗生素具有抗性，而96.3％是多药抗性菌株。总之，屠宰场中多药耐药的空肠弯曲杆菌猪批次污染水平很高，因此有必要将猪业纳入国家控制计划，以减少细菌及其耐药性。