Avian Infectious coryza, a highly opportunistic respiratory tract infection caused by Avibacterium paragallinarum is now believed to be evolving as a reemerging disease of poultry birds. Albeit adoption of strong precautionary/ prophylactic measures i.e. vaccine/vaccination practice, the infection continues as complicated pattern of disease course worldwide that results in massive economic and ...

Infectious coryza is a well-recognized and commonly encountered upper respiratory tract disease of chickens that is caused by the bacterium Haemophilus paragallinarum. The occurrence of recent outbreaks in North America has emphasized that the disease can be significant in meat chickens as well as layer chickens. In developing countries, coryza is commonly complicated by the presence of a range...

Avibacterium paragallinarum is an important pathogen of chicken livestock causing infectious coryza. Here, we report the draft genome sequence of the virulent A. paragallinarum serotype A strain JF4211 (2.8 Mbp and G+C content of 41%) and the two toxin operons discovered from the annotation of the genome.

Avibacterium paragallinarum is the causative agent of infectious coryza. Here we report the draft genome sequence of reference strain 221 of A. paragallinarum serovar A. The genome is composed of 135 contigs for 2,685,568 bp with a 41% G+C content.

The isolation of a Gram-negative bacillus from the nasal exudate of fowl experimentally infected with an uncomplicated coryza is reported in the preceding paper. ~ The introduction of this organism into the palatine cleft of normal fowl was regularly followed by an inflammation of the upper air passages with a discharge from the nares. I t was of importance to determine whether any infectious a...