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- Title
PERSISTENCE AND DIVERSITY OF LISTERIA MONOCYTOGENES ISOLATES IN NORWEGIAN PROCESSING PLANTS.
- Authors
Klæboe, Halvdan; Lunestad, Bjørn T.; Borlaug, Kjersti; Paulauskas, Algimantas; Rosef, Olav
- Abstract
Five salmon processing plants were investigated for periods of eight (plants A and B) and four (plants C, D and E) months for the occurrence of Listeria monocytogenes. A total of 226 strains of L. monocytogenes were isolated and subtyped. Automated ribotyping with DuPont Qualicon RiboPrinter® system with the enzyme EcoR1 was used to differentiate and characterize isolates for simple molecular tracking. The isolated strains could be divided into 16 DuPont ribotypes. The ribotypes DUP-1023C, DUP-1039C, DUP-1044E, DUP-1045B, DUP-1046A, DUP-1062B and 1062C were found to be persistent in the plants, as they were found through the whole sampling period. The remaining 9 ribotypes were isolated sporadically. Five of the persistent subtypes (DUP-1023C, DUP-1039C, DUP-1046A, DUP-1062B and 1062C) where isolated in high numbers. Ribotype DUP-1045B and DUP-1039C were found in four of the five investigated plants.
- Subjects
SALMON; LISTERIOSIS; LISTERIA monocytogenes; LISTERIA; FACTORY sanitation; PREVENTION; DISEASES
- Publication
Veterinarija ir Zootechnika, 2010, Vol 50, Issue 72, p42
- ISSN
1392-2130
- Publication type
Article