Isolation of a hemolytic Actinobacillus from waterfowl.

A previously undescribed species of hemolytic Actinobacillus was isolated from six waterfowl, three with periocular serous exudation and two with airsacculitis and bronchopneumonia. Cultural and biochemical characteristics were compared with those of Actinobacillus and Pasteurella spp, using a numerical technique.