Experimental infections with fowl pox in chickens

Authors: Howell LJ, Hunter R
Publication: New Zealand Veterinary Journal, Volume 26, Issue 11, pp 270-272, Nov 1978
Publisher: Taylor and Francis

Animal type: Avian, Poultry, Production animal
Subject Terms: Ear/nose/throat, Disease/defect, Bacterial, Infectious disease, Research/development, Respiratory system
Article class: Scientific Article

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Abstract: Seven groups of chickens were challenged with a field isolate of fowl pox virus at 18 weeks old. The birds in the groups that bad been vaccinated 3 weeks previously with fowl pox vaccinates showed no signs of disease. Birds which had not been vaccinated against fowl pox developed upper respiratory disease after challenge, and some birds had diphtheritic tracheitis and laryngitis which appeared identical to that commonly seen under field conditions. Seven days after challenge, fowl pox virus was recovered from the tracheas of unvaccinated birds, but not from the vaccinated ones. Intercurrent Mycoplasma gallisepticum infection appeared to extend slightly the period of respiratory disease but was not essential for development of the diphtheritic lesion.

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