Haemophilus infections in chickens 2: types of Haemophilus paragallinarum isolates from chickens with infectious coryza, in relation to Haemophilus gallinarum strain no. 221 / by 271463 Akira Sawata, Katsumi Kume, Yasukiyo Nakase

Haemophilus infections in chickens : III. Immonogenicity of serotypes 1 and 2 strains of haemophilus paraggallinarum. / by 271477 Katsumi Kume, Akira Sawata, Yasukiyo Nakase

Relationship between protective activity and antigen structure of haemophilus paragallinarum serotypes 1 and 2 / by 271477 Katsumi Kume, Akira Sawata, Yasukiyo Nakase