Plasmid-Mediated Factors Associated with Virulence of Bacteria to Animals

INTRODUCTION ... ... 465 VIRULENCE PLASMIDS OF ENTEROPATHOGENIC ESCHERICHIA COLI 466 Enteroto xin Plasm ids .... ... ..... ...... ....... 468 Colon ization Antigen Plasm ids 474 VIRULENCE PLASMIDS OF INVASIVE ESCHERICHIA COLI...... . . . . . . . . . . . .. . 477 ColV Plasmid .. .. .. ... . . . . .. 477 Vir Plasmid ... .....• ....... ..... ... ........ ...... ... ... ... ... ........ 482 R PLASMIDS AS VIRULENCE PLASMIDS ..... ....... 482 VIRULENCE PLASMIDS IN STAPHYLOCOCCUS A UREUS 486 Plasm ids and Enterotoxin B Synthesis . . ..... .. .. 486 Plasm ids and Exfoliative Toxin Synthesis .. ... . . .. .. ..... .... .. . . . . .. .... .. .. . 487' Effect of R Plasmid Carriage on the Virulen ce of S. aureus ........ ......... .. .. .... .. . 489 A POTPOURRI OF VIRULENCE PLASM IDS ...... .... ........ 490 CONCLUDING REMARKS .... ........ ..... ... .... .. . . .... ... 490