id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-346685-kldpmws7	Pan, Qing	Co-infection of broilers with Ornithobacterium rhinotracheale and H9N2 avian influenza virus	2012-07-02		.txt	text/plain	3814	219	54	Typical pneumonia and airsacculitis were observed both in broilers inoculated intraperitoneally with an ORT isolate alone and in those co-infected with ORT and H9N2 virus isolates. In the current report, we present the characterisation of ORT and H9N2 isolates obtained from co-infected broilers, with the objective of understanding the aetiology of severe avian pneumonia. Broilers inoculated intraperitoneally with ORT/chicken/Shandong/2011 alone displayed pneumonia and typical airsacculitis, and coinfection of the broilers with ORT and H9N2 virus isolates induced higher mortality than infection with ORT or H9N2 virus alone. The results of this study strongly suggest that co-infection with ORT and H9N2 virus is responsible for the current severe pneumonia with high mortality in broilers of China. However, the birds infected with the ORT isolated in this study had a 50% mortality rate, and a co-infection with the H9N2 virus resulted in 70% death. Co-infection of broilers with Ornithobacterium rhinotracheale and H9N2 avian influenza virus	./cache/cord-346685-kldpmws7.txt	./txt/cord-346685-kldpmws7.txt