It causes large growths on birds' beaks and eyes which can make them very sick. The virus is a form of avian pox - a skin disease which cannot be caught by humans. Scientists think the pox came ...
It is caused by Avian pox viruses which are single ... esophagus or trachea. Other symptoms include blindness, feed refusal, lowered egg production, facial swelling. How does this disease spread?
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