Macrorhabdus ornithogaster in wild birds
M. ornithogaster infection was diagnosed in 11 wild birds reported to the AWHN between April and June 2012. There were four affected galahs and one little corella from south-east Queensland, five galahs from northern New South Wales and a little corella from a Perth suburb. All cases were reported into the National Wildlife Health Information System through the Zoo Based Wildlife Disease Surveillance Program.
The galahs from Queensland and New South Wales presented to Currumbin Wildlife Sanctuary were emaciated and were all diagnosed with M. ornithogaster based on a wet-mount faecal smear. Four were from a single flock that, along with an Indian ringneck (Psittacula krameri) believed to be an escaped aviary bird, were known to be fed by a member of the public. One of the galahs, which presented with dyspnoea, had a heavy burden of M. ornithogaster in the proventriculus and a heavy infection of Trichomonas associated with caseous pharyngeal lesions (based on cytology).
The little corella was presented to Perth Zoo in June....
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