T he zoonotic potential of enterohaemorrhagic Escherichia coli (EHEC) subtype O157 represents a serious food-borne threat to human health (1 3). A common animal vector of this pathogen is cattle, and human cases of infection are frequently caused by ingesting food products contaminated with bacteria shed in the faecal matter or intestinal contents (2 4). The various manifestations of EHEC O157 ...

The objective of this study was to determine the effect of the acidification of pelleted feed on the carriage and seropositivity against Salmonella in finisher pigs of a commercial herd. Three different diets were assayed: 0.8% formic acid (group 1); 0.4% lactic acid plus 0.4% formic acid (group 2) and a feedstuff without additives (group 3). One thousand pigs were included in each treatment th...

The aim of the present study was to determine the frequency and distribution of Salmonella contaminations throughout the slaughtering process of pigs. The investigation was carried out in two slaughterhouses that were visited four times each on different days. Samples were taken from lairage areas, fecal contents, carcasses at different stages of processing and from the environment. Bacteriolog...