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This question was provided by Manson Publishing as part of the OVAL Project. See more Avian Medicine questions |
Shown above is the presenting lesion in a bird from a group with several affected individuals.
| Question | Answer | Article | |
| What is your primary differential diagnosis? | Poxvirus infection of the conjunctiva and periorbital skin.
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| List several possible differential diagnoses. | In psittacines, circovirus – PBFD – must also be considered as a similar lesion can be seen.
In all birds, other infectious diseases, hypersensitivity, and trauma should be ruled out. |
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| What is necessary to make a definitive diagnosis? | A definitive diagnosis is made histologically by observing the characteristic intracytoplasmic inclusion bodies in epithelial cells.
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Link to Article | |
| How is the disease transmitted? | The disease can spread by direct contact and by biting insects; control of the latter may be necessary to stop an outbreak.
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