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Pathogenicity and serovar-specific hemagglutinating antigens of Haemophilus paragallinarum serovar B strains.

Abstract

The pathogenicity and presence of serovar-specific hemagglutinating (HA) antigens of Haemophilus paragallinarum serovar B reference strains 0222 and Spross and field isolates 24268 and 24317 were investigated. Chickens challenged with all strains except strain 0222 showed clinical signs of infectious coryza. For all four strains, challenged chickens had intrasinus lesions and were colonized by the challenge organism. Before and after hyaluronidase treatment, strains 0222, 24268, and 24317 showed HA activity against formaldehyde-fixed chicken erythrocytes but not against fresh chicken erythrocytes. Strain Spross expressed HA activity only after treatment. In cross-hemagglutination-inhibition tests, the four serovar B strains cross-reacted with each other but not with serovar A and C strains. Cross-adsorption tests indicated that strain 24317 has a wider range of HA antigens than the other two strains. Our results indicated that H. paragallinarum serovar B strains are pathogenic for chickens and that they possess six different HA antigens, one of which is specific for serovar B strains.

Authors+Show Affiliations

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Aburahi Laboratories, Shionogi & Co., Ltd., Japan.

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Source

Avian diseases 34:4 pg 964-8

MeSH

Animals
Antigens, Bacterial
Chickens
Cross Reactions
Haemophilus
Haemophilus Infections
Hemagglutination Inhibition Tests
Hemagglutination Tests
Poultry Diseases
Respiratory Tract Infections
Specific Pathogen-Free Organisms

Pub Type(s)

Journal Article

Language

eng

PubMed ID

2149263

Citation

Yamaguchi, T, et al. "Pathogenicity and Serovar-specific Hemagglutinating Antigens of Haemophilus Paragallinarum Serovar B Strains." Avian Diseases, vol. 34, no. 4, 1990, pp. 964-8.
Yamaguchi T, Blackall PJ, Takigami S, et al. Pathogenicity and serovar-specific hemagglutinating antigens of Haemophilus paragallinarum serovar B strains. Avian Dis. 1990;34(4):964-8.
Yamaguchi, T., Blackall, P. J., Takigami, S., Iritani, Y., & Hayashi, Y. (1990). Pathogenicity and serovar-specific hemagglutinating antigens of Haemophilus paragallinarum serovar B strains. Avian Diseases, 34(4), pp. 964-8.
Yamaguchi T, et al. Pathogenicity and Serovar-specific Hemagglutinating Antigens of Haemophilus Paragallinarum Serovar B Strains. Avian Dis. 1990;34(4):964-8. PubMed PMID: 2149263.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Pathogenicity and serovar-specific hemagglutinating antigens of Haemophilus paragallinarum serovar B strains. AU - Yamaguchi,T, AU - Blackall,P J, AU - Takigami,S, AU - Iritani,Y, AU - Hayashi,Y, PY - 1990/10/1/pubmed PY - 1990/10/1/medline PY - 1990/10/1/entrez SP - 964 EP - 8 JF - Avian diseases JO - Avian Dis. VL - 34 IS - 4 N2 - The pathogenicity and presence of serovar-specific hemagglutinating (HA) antigens of Haemophilus paragallinarum serovar B reference strains 0222 and Spross and field isolates 24268 and 24317 were investigated. Chickens challenged with all strains except strain 0222 showed clinical signs of infectious coryza. For all four strains, challenged chickens had intrasinus lesions and were colonized by the challenge organism. Before and after hyaluronidase treatment, strains 0222, 24268, and 24317 showed HA activity against formaldehyde-fixed chicken erythrocytes but not against fresh chicken erythrocytes. Strain Spross expressed HA activity only after treatment. In cross-hemagglutination-inhibition tests, the four serovar B strains cross-reacted with each other but not with serovar A and C strains. Cross-adsorption tests indicated that strain 24317 has a wider range of HA antigens than the other two strains. Our results indicated that H. paragallinarum serovar B strains are pathogenic for chickens and that they possess six different HA antigens, one of which is specific for serovar B strains. SN - 0005-2086 UR - https://www.unboundmedicine.com/medline/citation/2149263/Pathogenicity_and_serovar_specific_hemagglutinating_antigens_of_Haemophilus_paragallinarum_serovar_B_strains_ L2 - https://medlineplus.gov/haemophilusinfections.html DB - PRIME DP - Unbound Medicine ER -