id author title date pages extension mime words sentences flesch summary cache txt cord-002948-hl9ysaxj Samy, Ahmed Avian Respiratory Coinfection and Impact on Avian Influenza Pathogenicity in Domestic Poultry: Field and Experimental Findings 2018-02-24 .txt text/plain 5203 272 42 An experimental study with LPAIV H9N2 (A/chicken/Iran/SH-110/99(H9N2)) and an IBV live vaccine (H120 strain) was conducted concerning clinical signs, gross lesions, viral shedding, and mortality. Chickens, co-infected simultaneously with LPAIV H9N2 (A/Chicken/Iran/SH110/99) and IBV (IBV/4/91), reported severe clinical signs (respiratory distress, facial edema, conjunctivitis, depression, lacrimation, ruffled feathers, whitish watery diarrhea, and nasal discharge which continued until eight days post-infection), gross lesions (tracheal congestion, air saculitis, lung hyperemia, tubular cast formation in the tracheal bifurcation which extended to the lower bronchi, swollen kidney, and hemorrhagic pancreas and intestine), and mortality rate (5%), which were significantly different when compared with chickens infected separately with the same virus. In contrast, chickens infected with same LPAIV H9N2 strains alone showed no clinical signs, no virus was recovered from their blood, and there was lower replication efficiency in respiratory tissues [25] . Experimental co-infections of domestic ducks with a virulent Newcastle disease virus and low or highly pathogenic avian influenza viruses ./cache/cord-002948-hl9ysaxj.txt ./txt/cord-002948-hl9ysaxj.txt