ATTENUATED SERPULINA HYODYSENTERIAE MUTANT FOR PREVENTION OF SWINE DYSENTERY

摘要

Serpulina hyodysenteriae mutants having attenuated virulence are provided by specific disruption of a gene found to be involved in S. hyodysenteriae virulence. The attenuated mutant strains of S. hyodysenteriae thus produced are useful as live attenuated vaccines for increasing the resistance in swine to dysentery infection.