CategoryPost-Harvest Pork Safety
Date Full Report Received03/22/2018
Date Abstract Report Received03/22/2018
InvestigationInstitution: South Dakota State University
Primary Investigator: Dr. Joy Scaria
Co-Investigators: Dr. Jane Christopher-Hennings DVM MS, Dr. Alan Erickson, Dr. Milton Thomas, William Benjy Mikel
Funded ByNational Pork Board
The goal of this study was to determine the prevalence of Salmonella enterica in lymph nodes in sows and market hogs. Paired superficial inguinal lymph nodes were collected from twenty one commercial facilities in the northern and southern regions of the United States. Salmonella prevalence was detected in 12.55% of the porcine lymph nodes tested. A subset of samples was typed using whole genome sequencing. The distribution pattern of the serotypes identified through whole genome sequencing indicated that multiple serotypes are prevalent in the lymph nodes of swine. Additionally, these isolates had antimicrobial genes that provided resistance to 4 classes of antibiotics. One of the isolates was multidrug resistant with resistance against three antibiotic classes. These results indicate that pork and related food products could act as a potential risk for salmonellosis to the public.