Virulence of the nine serovar reference strains of Haemophilus paragallinarum

Soriano, V.E., Longinos, G.M., Fernandez, R.P., Velasquez, Q.E., Ciprian, C.A., Salazar-Garcia, F. and Blackall, P.J. (2004) Virulence of the nine serovar reference strains of Haemophilus paragallinarum. Avian Diseases, 48 4: 886-889. doi:10.1637/7188-033104R1


Author Soriano, V.E.
Longinos, G.M.
Fernandez, R.P.
Velasquez, Q.E.
Ciprian, C.A.
Salazar-Garcia, F.
Blackall, P.J.
Title Virulence of the nine serovar reference strains of Haemophilus paragallinarum
Journal name Avian Diseases   Check publisher's open access policy
ISSN 0005-2086
1938-4351
Publication date 2004-12
Sub-type Article (original research)
DOI 10.1637/7188-033104R1
Volume 48
Issue 4
Start page 886
End page 889
Total pages 4
Place of publication Jacksonville, FL, United States
Publisher American Association of Avian Pathologists
Language eng
Abstract The virulence of the reference strains of the nine currently recognized Kume serovars of Haemophilus paragallinarum was investigated. The capacity of the H. paragallinarum strains to cause the typical clinical signs of upper respiratory tract disease associated with infectious coryza in unvaccinated, nasal-challenged chickens was assessed. Differences in virulence were assessed by means of a standardized scoring system for clinical signs. All nine strains were pathogenic to chickens, producing typical clinical signs of infectious coryza. The highest clinical signs score was obtained for serovar C-1 (1.72), while the lowest clinical signs score was obtained for serovar C-4 (0.32). Our results indicate that virulence differences exist among the serovars of H. paragallinarum.
Keyword Haemophilus paragallinarum
Infectious coryza
Serovars
Pathogenicity
Virulence
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Queensland Alliance for Agriculture and Food Innovation
 
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Created: Mon, 07 Mar 2011, 14:43:53 EST