Typing of Salmonella enterica subsp. enterica serovar Mbandaka isolates
2001
Hoszowski, A. | Wasyl, D.
Recently, Salmonella enterica subsp. enterica serovar Mbandaka (S. Mbandaka) has gained some importance in the epidemiology of salmonellosis in Poland. Since biotyping, resistance typing, and plasmid profiling were insufficient for strain differentiation, genome macrorestriction by means of pulse-field gel electrophoresis (PFGE) was applied and proved to be the method of choice in S. Mbandaka epidemiological studies. XbaI and BcuI macrorestriction produced 15 and 14 pulse-field profiles (PFP), respectively, but in the case of each enzyme one profile was prevalent. When macrorestriction profiles were combined, a total 24 patterns were found. Based on the similarity of the profiles, four clonal lineages were identified. One clonal lineage contained the majority of poultry, feed and human isolates. Poultry was concluded to be an important source of S. Mbandaka for humans in Poland. Complementary use of various typing techniques improved efficacy of epidemiological studies giving possibility to subdivide S. Mbandaka into 35 types and the index of discrimination reached 0.947.
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