| isolation and molecular characterization of newcastle disease viruses from raptors. | the present study was undertaken to detect and characterize newcastle disease virus (ndv) in raptors. cloacal and oropharyngeal swab samples were collected from 60 casualty raptors during january to march 2009 in minnesota. inoculation of all these samples (n=120) in 9-day-old embryonated hens' eggs resulted in isolation of haemagglutinating viruses in three samples from two bald eagles and one great horned owl. these three haemagglutinating viruses were confirmed as ndv by reverse transcription ... | 2010 | 21154052 |