Demonstration of the pathogen in Newcastle disease from autopsy material using direct immunofluorescence
Geringer, K.J.
Deutsche Tierärztliche Wochenschrift 81(13): 309-311
1974
ISSN/ISBN: 0341-6593 PMID: 4603450 Document Number: 75503
The effectiveness of the method was demonstrated in brains intended for vaccine production, and in brain samples from 14 hens, one cockatoo, two parrots and a parakeet. All except one were positive by the immunofluorescence test-a characteristic yellowish-green cytoplasmic fluorescence was present; and all were positive by an HA test of eggs infected with the same material. ND-free controls were negative by both tests.