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Isolation of serovar C-3 Haemophilus paragallinarum from Zimbabwe: A further indication of the need for the production of vaccines against infectious coryza containing local isolates of H. paragallinarum.
Onderstepoort J Vet Res 2002; 69(2):129-32OJ

Abstract

Various isolates of Haemophilus paragallinarum, collected from a severe outbreak of infectious coryza in poultry from Zimbabwe, were serotyped and were found to belong to serovar C-3. Previously, isolates were serotyped using polyclonal antiserum produced against serogroup reference strains (0083 for serogroup A, 0222 for serogroup B and Modesto, or H-18 for serogroup C) of H. paragallinarum. In this case, polyclonal antiserum produced against these reference isolates were used, as well as polyclonal antiserum that has been raised specifically against the serovar C-3 isolate 46 C-3. When using the latter serum at a 1 in 50 dilution, no cross-reaction with other members of serogroup C were found. The severity of the disease outbreak in Zimbabwe, the vaccination history of the infected flocks on the sites and the isolation of the uniquely southern African serovar C-3, further highlights the need for vaccines composed of local isolates to control infectious coryza in regions where vaccination failures occur.

Authors+Show Affiliations

Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein, South Africa. BraggRR@sci.uovs.ac.za

Pub Type(s)

Journal Article

Language

eng

PubMed ID

12233998

Citation

Bragg, R R.. "Isolation of Serovar C-3 Haemophilus Paragallinarum From Zimbabwe: a Further Indication of the Need for the Production of Vaccines Against Infectious Coryza Containing Local Isolates of H. Paragallinarum." The Onderstepoort Journal of Veterinary Research, vol. 69, no. 2, 2002, pp. 129-32.
Bragg RR. Isolation of serovar C-3 Haemophilus paragallinarum from Zimbabwe: A further indication of the need for the production of vaccines against infectious coryza containing local isolates of H. paragallinarum. Onderstepoort J Vet Res. 2002;69(2):129-32.
Bragg, R. R. (2002). Isolation of serovar C-3 Haemophilus paragallinarum from Zimbabwe: A further indication of the need for the production of vaccines against infectious coryza containing local isolates of H. paragallinarum. The Onderstepoort Journal of Veterinary Research, 69(2), pp. 129-32.
Bragg RR. Isolation of Serovar C-3 Haemophilus Paragallinarum From Zimbabwe: a Further Indication of the Need for the Production of Vaccines Against Infectious Coryza Containing Local Isolates of H. Paragallinarum. Onderstepoort J Vet Res. 2002;69(2):129-32. PubMed PMID: 12233998.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Isolation of serovar C-3 Haemophilus paragallinarum from Zimbabwe: A further indication of the need for the production of vaccines against infectious coryza containing local isolates of H. paragallinarum. A1 - Bragg,R R, PY - 2002/9/18/pubmed PY - 2002/12/10/medline PY - 2002/9/18/entrez SP - 129 EP - 32 JF - The Onderstepoort journal of veterinary research JO - Onderstepoort J. Vet. Res. VL - 69 IS - 2 N2 - Various isolates of Haemophilus paragallinarum, collected from a severe outbreak of infectious coryza in poultry from Zimbabwe, were serotyped and were found to belong to serovar C-3. Previously, isolates were serotyped using polyclonal antiserum produced against serogroup reference strains (0083 for serogroup A, 0222 for serogroup B and Modesto, or H-18 for serogroup C) of H. paragallinarum. In this case, polyclonal antiserum produced against these reference isolates were used, as well as polyclonal antiserum that has been raised specifically against the serovar C-3 isolate 46 C-3. When using the latter serum at a 1 in 50 dilution, no cross-reaction with other members of serogroup C were found. The severity of the disease outbreak in Zimbabwe, the vaccination history of the infected flocks on the sites and the isolation of the uniquely southern African serovar C-3, further highlights the need for vaccines composed of local isolates to control infectious coryza in regions where vaccination failures occur. SN - 0030-2465 UR - https://www.unboundmedicine.com/medline/citation/12233998/Isolation_of_serovar_C_3_Haemophilus_paragallinarum_from_Zimbabwe:_A_further_indication_of_the_need_for_the_production_of_vaccines_against_infectious_coryza_containing_local_isolates_of_H__paragallinarum_ L2 - https://medlineplus.gov/haemophilusinfections.html DB - PRIME DP - Unbound Medicine ER -