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Salmonella serovar distribution from non‐human sources in Italy; results from the IT‐Enter‐Vet network
Author(s) -
Mancin Marzia,
Barco Lisa,
Losasso Carmen,
Belluco Simone,
Cibin Veronica,
Mazzucato Matteo,
Bilei Stefano,
Carullo Maria Rosaria,
Decastelli Lucia,
Di Giannatale Elisabetta,
D'Incau Mario,
Goffredo Elisa,
Lollai Stefano,
Piraino Chiara,
Scuota Stefania,
Staffolani Monica,
Tagliabue Silvia,
Ricci Antonia
Publication year - 2018
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.104907
Subject(s) - serotype , salmonella , salmonella enteritidis , biology , isolation (microbiology) , veterinary medicine , distribution (mathematics) , microbiology and biotechnology , bacteria , medicine , genetics , mathematical analysis , mathematics
The study summarises the results obtained over the period 2002–2013 by the Italian IT‐Enter‐Vet network, aimed at collecting data on Salmonella isolates from non‐human sources. A total of 42,491 Salmonella isolates were reported with a progressive decrease over the years. S. Typhimurium was the most frequent serovar up to 2011, but then, it was overtaken by S. 4,[5],12,:i:‐, S. Derby , S. Livingstone and S. Enteritidis alternated as the third most commonly isolated serovars. With regard to the sources of isolation, S. Typhimurium was distributed ubiquitously among the animal species. On the contrary, S. 4,[5],12,:i:‐ and S. Derby were strictly associated with pigs, whereas S. Livingstone , S. Enteritidis and S. Infantis were clearly related to poultry. Intriguingly, when the frequency of serovar distribution along the food chain was considered, it was evident that S. Typhimurium and S. Derby tended to persist along the chain, as they were isolated even more frequently from foods than from animals. A similar distribution was found for S. Enteritidis and S. Hadar. Despite limitations related to non‐mandatory participation of laboratories in the network, the data presented are valuable to obtain a picture of the evolution of Salmonella from non‐human sources over time in Italy.