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Fifty nosocomial isolates of Serratia marcescens, collected in six Belgian hospitals between 1986 and 1990, were characterized by using pulsed-field gel electrophoresis (PFGE) with Xbal. The results were compared with those previously obtained by three other methods: biotyping, esterase electrophoresis typing and ribotyping with EcoRI and HindIII. Macrorestriction analysis (42 PFGE groups) and esterase...
A total of 292 Serratia marcescens strains isolated in seven Belgian hospitals between 1986 and 1992 were submitted to both biotyping by carbon source utilization and esterase electrophoresis typing. The strains were assigned to 11 biotypes (290 isolates) or were auxotrophic (2 isolates), whereas the various electrophoretic patterns of their esterases produced 54 zymotypes. The two typing methods...
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