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Paramyxovirus infection occurs in pigeons as an acute disease, taking an epidemic course. Pathogen: The paramyxovirus is related to the Newcastle disease pathogen, but not identical. The virus is highly pathogenic for pigeons, but not for other domestic bird species. Course of the disease: Within just a few days of infection, both visibly and latently affected birds shed the virus in secretions from the conjunctiva, nose and throat, as well as in the faeces. The incubation period ranges from 3 to 21 days. Up to 30% of affected pigeons may recover spontaneously after around 4 weeks of illness. Symptoms of...