TY - GEN AU - Hyatt,D R AU - ter Huurne,A A AU - van der Zeijst,B A AU - Joens,L A TI - Reduced virulence of Serpulina hyodysenteriae hemolysin-negative mutants in pigs and their potential to protect pigs against challenge with a virulent strain SN - 0019-9567 PY - 1994///0623 KW - Animals KW - Brachyspira hyodysenteriae KW - pathogenicity KW - Colon KW - microbiology KW - Feces KW - Hemolysin Proteins KW - analysis KW - Mutation KW - Swine KW - Virulence N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S UR - https://doi.org/10.1128/iai.62.6.2244-2248.1994 ER -