Article
Isolation and characterization of a Haemophilus paragallinarum mutant that lacks a hemagglutinating antigen.
Avian diseases - 1 Jan 2000
Yamaguchi T, Kobayashi M, Masaki S, Iritani Y
Abstract excerpt
In an in vivo cross-protection test with Haemophilus paragallinarum strains of serovars B and C, we isolated and characterized a mutant strain, S1M, which lacked a hemagglutinating (HA) antigen when compared biologically and immunologically with isogenic strain S1. Unlike the isogenic strain S1, the mutant strain S1M lacked HA activity against formaldehyde-fixed chicken erythrocytes, even after hyaluronidase...
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