Recent situation of pigeon paramyxo-virus infection in pigeons in Egypt

47 pigeon lofts at different localities in Sharqia, Daqahlia and Giza were investigated for causes of nervous manifestations. Morbidity and mortality rates ranged from 15 to 80% and 10 to 65%, respectively. Paramyxovirus could be isolated from 24 cases; 14 of them were more related to pigeon paramyxovirus-1 [PPMV-1] using cross hemagglutination inhibition test and 3 more related to Montana strain of Newcastle disease virus [NDV]. Three were similarly related to both PPMV-1 and [NDV] and the last 4 less related to both PPMV-1 and Montana. The isolates showed antigenic similarity to each other and to the reference PPMV-1. On the other h and, they showed marked diversity from the Montana strain [NDV]. High percentage [88.7%] of the sera tested from the above mentioned flocks had HI antibodies against both NDV [Montana] and PPMV-1

Pathogenicity of recent isolates of pigeon paramyxo virus in pigeons in Egypt

Ninety two-month old pigeons were divided into six groups to study the pathogenicity of five PPMV-1 isolates with a control non-infected group. Each group was subdivided into three subgroups for intravenous, intranasal and contact infection. Clinical signs, morbidity, mortality and postmortem lesions are presented. Reisolation, seroconversion and histopathological changes are Discussed