A comparative infection study of pigeon and avian paramyxovirus type 1 viruses in pigeons: evaluation of clinical signs, virus shedding and seroconversion.
Avian Pathol
; 40(2): 125-30, 2011 Apr.
Article
em En
| MEDLINE
| ID: mdl-21500031
ABSTRACT
The pathogenesis of pigeon paramyxovirus type 1 (PPMV-1) isolate AV324/96 and of its recombinant derivative, rgAV324, was studied in pigeons. For comparison, the virulent chicken virus FL-Herts, which is a recombinant derivative of strain Herts/33, was also included. After inoculation by the combined intraocular, intranasal and intratracheal route, clinical signs, virus shedding and serological responses were examined. Clinical signs were observed only in the FL-Herts-infected group. All virus-inoculated pigeons had positive tracheal swabs until 5 days post infection. However, only the AV324/96-infected and rgAV324-infected birds, and not the FL-Herts-infected birds, shed virus in the cloaca. The AV324/96-infected pigeons showed higher mean antibody titres than the rgAV324-infected birds, whereas the antibody titres of the FL-Herts-infected group were rather low. The results show that the pigeon strain AV324 is not virulent for pigeons, but underlines the potential risk of poultry becoming infected by PPMV-1 shed by non-symptomatic pigeons.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Columbidae
/
Doenças das Aves Domésticas
/
Vírus da Doença de Newcastle
/
Eliminação de Partículas Virais
/
Doença de Newcastle
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Revista:
Avian Pathol
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Holanda