Prevalence and antimicrobial resistance of Salmonella enterica subspecies enterica serovar Enteritidis isolated from broiler chickens in Shandong Province, China, 2013–2018

Salmonella is a major zoonotic foodborne pathogen that persists on poultry farms worldwide. The present study aimed to survey the prevalence of and antimicrobial resistance enterica serovar Enteritidis (S. Enteritidis) recovered from broiler chickens in Shandong Province, China. A total 280 isolates were identified 923 chicken samples between 2013 2018. Among isolates, S. (n = 128, 45.7%) was predominant serovar, high rates piperacillin (PIP) 123, 96.1%), ampicillin (AM) 122, 95.3%), nitrofurantoin (FT) 106, tetracycline (TE) 93, 72.7%) observed Enteritidis. 96 (75.0%) presented with multidrug resistance, most frequent which combination AM, PIP, TE, FT. Resistance fluoroquinolone tended increase during Our findings provide important updated information about baseline antimicrobial-resistant data for food safety risk assessment Province will be helpful future surveillance activities ensure supply.