Virulence factors in Serratia marcescens: cell-bound hemolysin and aerobactin.
Copyright policy )Virulence factors in Serratia marcescens: cell-bound hemolysin and aerobactin.
1. A total of 60 nosocomial isolates of Serratia marcescens were screened for the presence of markers related to virulence, i.e., cell-bound hemolysin and production of siderophore aerobactin. 2. No aerobactin-producing strains were found, and the incidence of cell-bound hemolysin was 97%. 3. Hemolysin-positive (58 strains) and hemolysin-negative (2 strains) Serratia marcescens showed the same LD50 (3 x 10(7) bacteria) in a test of virulence for mice. 4. These results indicate that cell-bound hemolysin is not a main factor of virulence for mice in Serratia marcescens.
- Londrina State University Brazil
Cross Infection, Virulence, Hydroxamic Acids, Hemolysis, Hemolysin Proteins, Mice, Animals, Humans, Brazil, Serratia marcescens
Cross Infection, Virulence, Hydroxamic Acids, Hemolysis, Hemolysin Proteins, Mice, Animals, Humans, Brazil, Serratia marcescens
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