Escuela de Zootecnia, Universidad de Costa Rica, 11501-2060 Ciudad Universitaria Rodrigo Facio, San José, Costa Rica; Infectious Diseases Epidemiology Department, Bernhard Nocht Institute for Tropical Medicine (BNITM), 20359 Hamburg, Germany.
Infectious Diseases Epidemiology Department, Bernhard Nocht Institute for Tropical Medicine (BNITM), 20359 Hamburg, Germany.
Int J Food Microbiol. 2024 May 2;416:110663. doi: 10.1016/j.ijfoodmicro.2024.110663. Epub 2024 Mar 7.
Antibiotic resistant Salmonella enterica are on the increase, worldwide. Given the scarcity of data, this study aimed to investigate its occurrence, virulence, and antibiotic resistance in Costa Rica's food chain. In total, 65 chicken meat- and 171 chicken caecal samples were collected and examined for Salmonella. High frequencies of Salmonella were found in chicken meat (58.5 %, n/N = 38/65) and poultry farms (38.0 %, n/N = 65/171). The majority of Salmonella from chicken meat (89.5 %, n/N = 34/38) and caecum samples (93.6 %, n/N = 59/63) exhibited multidrug resistance (MDR). Serovar Infantis was the most prevalent (94 %, n/N = 67/71), followed by serovars Anatum and Kentucky (3 %, n/N = 2/71). A pESI-like plasmid (92 %, n/N = 65/71) containing virulence and resistance markers was found in S. Infantis. Given the high prevalence of MDR Salmonella, this study emphasizes the need to enhance surveillance systems for foodborne pathogens and antimicrobial resistance in Costa Rica's food production chain.
抗药性沙门氏菌在全球范围内呈上升趋势。鉴于数据的稀缺性，本研究旨在调查沙门氏菌在哥斯达黎加食物链中的发生情况、毒力和抗生素耐药性。总共采集了 65 份鸡肉和 171 份鸡盲肠样本进行沙门氏菌检测。鸡肉（58.5%，n/N=38/65）和家禽养殖场（38.0%，n/N=65/171）中沙门氏菌的检出率较高。来自鸡肉（89.5%，n/N=34/38）和盲肠样本（93.6%，n/N=59/63）的大多数沙门氏菌表现出多药耐药性（MDR）。肠炎沙门氏菌最为普遍（94%，n/N=67/71），其次是安藤沙门氏菌和肯塔基沙门氏菌（3%，n/N=2/71）。在肠炎沙门氏菌中发现了一种含有毒力和耐药性标记物的 pESI 样质粒（92%，n/N=65/71）。鉴于 MDR 沙门氏菌的高流行率，本研究强调需要加强哥斯达黎加食品生产链中食源性致病菌和抗微生物药物耐药性的监测系统。
