No treatment except isolation of affected birds. Vaccinate breeder flocks to provide immunity to chicks. A bacterial organism, Pasteurella Multocida. Sudden death, greenish diarrhea, high temperature, comb and wattle purple. Also swollen wattle.
Many drugs are available.
Depopulate and use one age birds on farms. Bacterins may be used to aid prevention. In laying birds, a drop in egg production, misshaped eggs with low quality. Some strains of the virus may cause severe kidney damage. A virus of the leukosis-sarcoma complex.