Amelioration of Marek's disease by Mycoplasma gallisepticum

Clinical examination and necropsy findings of a mountain hawk-eagle (Nisaetus nipalensis) that died during rehabilitation

We examined the clinical signs and necropsy findings of a mountain hawk-eagle (Nisaetus nipalensis) that died during rehabilitation. The bird was rescued and treated for open fracture of the right forearm. During rehabilitation, the bird could not stand up or fly. Part of the right secondary and left and right primary feathers were removed during rehabilitation; additional fracture was found in the right tibiotarsus and treated. However, the bird died 92 days after rescue and necropsy was performed. Severe hepatic lipidosis and capture myopathy were confirmed by histopathological examinations. These lesions may be associated with the cause of death of this animal. Accumulation of information is expected to contribute to the improvement of effective rehabilitation techniques for raptors.

Avian mycoplasma infections: prototype of mixed infections with mycoplasmas, bacteria and viruses

Mixed infections involving mycoplasmas, viruses and bacteria are well recognized in chickens. Synergism has been demonstrated between Mycoplasma gallisepticum and the viruses of Newcastle disease and infectious bronchitis and Escherichia coli, although the outcome of infection is influenced by many factors associated with the host and the organisms. Airsacculitis in broilers due to M. synoviae or M. gallinarum may be precipitated by concurrent respiratory virus infections including vaccine strains. Turkeys, geese and ducks have been less well studied, but similar interactions seem to occur. Such observations may give an indication as to the likely interactions between mycoplasmas, viruses and bacteria in other host species.