RT Journal Article
T1 Vaccination as a control strategy against Salmonella infection in pigs: A systematic review and meta-analysis of the literature
A1 De La Cruz Conty, María Luisa
A1 Conrado, Ina
A1 Nault, Andre
A1 Perez, Andres
A1 Domínguez Rodríguez, Lucas José
A1 Álvarez Sánchez, Julio
AB Consumption or handling of improperly processed or cooked pork is considered one of the top sources for foodborne salmonellosis, a common cause of intestinal disease worldwide. Asymptomatic carrier pigs may contaminate pork at slaughtering; therefore, pre-harvest reduction of Salmonella load can contribute to reduce public health risk. Multiple studies have evaluated the impact of vaccination on controlling Salmonella in swine farms, but results are highly variable due to the heterogeneity in vaccines and vaccination protocols. Here, we report the results of an inclusive systematic review and a meta-analysis of the peer-reviewed scientific literature to provide updated knowledge on the potential effectiveness of Salmonella vaccination. A total of 126 articles describing the use of Salmonella vaccines in swine were identified, of which 44 fulfilled the inclusion criteria. Most of the studies (36/44) used live vaccines, and S. Typhimurium and S. Choleraesuis were the predominant serotypes evaluated. Vaccine efficacy was most often measured through bacteriological isolation, and pooled estimates of vaccine efficacy were obtained as the difference in the percentage of positive animals when available. Attenuated and inactivated vaccines had similar efficacy [Risk Difference=-26.8% (-33.8, -19.71) and -29.5% (-44.4, -14.5), respectively]. No serotype effect was observed on the efficacy recorded for attenuated vaccines; however, a higher efficacy of inactivated vaccines against S. Choleraesuis was observed, though in a reduced sample. Results from the meta-analysis here demonstrate the impact that vaccination may have on the control of Salmonella in swine farms and could help in the design of programs to minimize the risk of transmission of certain serotypes through the food chain.
PB Elsevier
SN 0034-5288
YR 2017
FD 2017-10
LK https://hdl.handle.net/20.500.14352/116077
UL https://hdl.handle.net/20.500.14352/116077
LA eng
NO de la Cruz ML, Conrado I, Nault A, Perez A, Dominguez L, Alvarez J. Vaccination as a control strategy against Salmonella infection in pigs: A systematic review and meta-analysis of the literature. Res Vet Sci. 2017 Oct;114:86-94.
NO Interprofesional Porcino de Capa Blanca
NO Global Food Venture
DS Docta Complutense
RD 22 abr 2025