Characterization of XXXX (avian paramyxovirus-1) isolated from pigeons.

@entity66 @entity39 @entity1573 @entity1800 @entity400 @entity204 @entity912
@entity1800 (avian paramyxovirus-1) was isolated from pigeons in 12 states between May 1984 and December 1985. One of the isolates was from a feral pigeon; the remainder were from privately owned pigeon lofts. Use of monoclonal antibodies showed seven of the eight isolates tested to be indistinguishable from the 1982 and 1983 Great Britain and European isolates. Clinical signs were @entity912 , torticollis, @entity400 , incoordination, and @entity204 . Pigeons inoculated with the paramyxovirus-1 isolates intravenously or intramuscularly developed clinical disease identical to that described for natural infection; however, only one pigeon inoculated intranasally developed clinical signs. The mean @entity204 time for inoculated pigeons was 9.5 days, with a range of 4 to 25. Virus was shed for up to 20 days. Primary lesions observed on necropsy were gastroenterocolitis and @entity39 . @entity1573 experimentally infected by the cloacal, intranasal, or caudal thoracic air-sac route remained healthy. However, the intracerebral pathogenicity index (ICPI) in day-old @entity1573 was similar to that observed with velogenic @entity1800 isolates. Four of six isolates inoculated intravenously into 6-week-old @entity1573 induced @entity66 .
