Protection levels of vaccinated pigeons (Columba livia) against a highly pathogenic newcastle disease virus strain

Autor(es)

Carrasco, Adriano O. T. ^[1] ; Seki, Meire C. ^[2] ; de Sousa, Ricardo L. M. ^[2] ; Raso, Tania F. ^[3] ; Pinto, Aramis A. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Centrooeste, Dept Vet Med, Guarapuava, PR - Brazil

^[2] Univ Estadual Paulista, Dept Patol Vet, Fac Ciencias Agr & Vet, BR-14884900 Jaboticabal, SP - Brazil

^[3] Univ Sao Paulo, Dept Patol, Fac Med Vet, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: TROPICAL ANIMAL HEALTH AND PRODUCTION; v. 41, n. 7, p. 1325-1333, OCT 2009.
• Citações Web of Science: 9

Resumo

The purposes of this study were to model a vaccination regimen for Newcastle disease virus (NDV) in pigeons, and to evaluate the susceptibility and behavior of vaccinated birds against a highly pathogenic NDV Brazilian strain. Antibody response was assessed by means of hemagglutination inhibition test (HI), and viral genome excretion by means of RT-PCR. Vaccinal strains (La Sota and Ulster) induced high antibody titers without any adverse effects, both in inoculated and in sentinel birds. A viral strain pathogenic for chickens did not produce clinical signs of the disease in experimentally infected pigeons. Only 4 out of 10 vaccinated pigeons shed NDV genome, and just for two days. Results confirmed the high infectivity of the vaccinal strains used, as all nonvaccinated pigeons showed antibody titers as high as those of vaccinated birds. (AU)

• Processo FAPESP: 04/13868-0 - Estudo da infectividade, transmissibilidade, estado de portador (reservatorio) e da resposta imune humoral de pombos (columba livia) submetidos a infeccao experimental frente ao virus da doenca de ...
• Beneficiário: Adriano de Oliveira Torres Carrasco
• Modalidade de apoio: Bolsas no Brasil - Doutorado