Submitted by admin on Tue, 08/26/2008 - 15:40
Clinical Signs:
Peracute (sedden) death, high flock mortality
Clinical description:
This image was taken 2 days post experimental inoculation with highly pathogenic avian influenza. A 6 week old male is standing among several deceased 70 week old hens. The older females succumbed more rapidly to the HPAI than the younger males, due to the physiologic stress associated with molting. In HPAI, the duration of onset of clinical signs and severity of signs will vary depending on factors such as species, age, physiologic stress, and concurrent infections. As demonstrated here, HPAI is marked by high morbidity and mortality. Of the 20 chickens inoculated experimentally, 19 died within 5 days of exposure to the infection. Some birds infected with HPAI die peracutely, showing no clinical signs prior to being found dead.
Record number:
20698
Age:
6, 70 weeks
Breed:
White Leghorn SPF
Clinical form:
Acute
Infection type:
Experimental
History:
The photograph was taken 2 days post inoculation. The birds were experimentally inoculated with highly pathogenic avian influenza virus on 3/2/08 at Plum Island Animal Disease Center. The inoculations were performed in the caudal thoracic air sac with strain A/CK/PA/469/3-84/H5N2, 0.25ml.
Zootechnical purpose:
Egg layers- white egg
Housing/mgmnt type:
Select One
Priority:
1
Rights:
© Cornell University
Etiology:
Exam findings:
Asset type:
Species:
Image:
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