Effect of infectious bronchitis and Newcastle disease vaccines on experimental avian influenza infection (H9N2) in broiler chickens
Despite the fact that H9N2 avian influenza virus (AIV) is considered a low-pathogenic agent, fre-quent outbreaks of this subtype have caused high mortality and economic losses in poultry farms around the world including Iran. Coinfection with a respiratory pathogen or environmental factors may expla...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
2021-12-01
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| Series: | Bulgarian Journal of Veterinary Medicine |
| Subjects: |