All of the L. monocytogenes isolates collected from the meat
processing plants including surface sampling points, RTE meat
products and raw meat products were submitted to further characterisation.
Ten isolates from the IRTA own collection (CTC), which
had been recovered from RTE meat products were also included in
the study, and L. monocytogenes CIP107776 (strain EGDe) was used
as a control strain.