Susceptibilidad de la paloma silvestre (columba livia) a un virus velogénico viscerotrópico de la enfermedad de newcastle en condiciones experimentales

Translated title of the contribution: Susceptibility of wild pigeons (Columba livia) to a velogenic viscerotropic Newcastle disease virus under experimental conditions

R. Fabiola Caballero, C. Mónica Alba, D. A. Eliana Icochea, C. Rosa Perales, A. Raúl Rosadio

Research output: Contribution to journalArticlepeer-review

Abstract

The objective of the study was to asses the susceptibility, pathological effect and serological response of wild pigeons (Columba livia) to Newcastle virus. A total of 28 adult wild pigeons were captured, 14 were inoculated with a velogenic viscerotropic strain of Newcastle virus by oral and nasal route, and the remaining birds were used as a control group. Clinical signs and mortality were recorded. Blood samples were collected for the hemaglutination inhibition technique. Tissue samples from lung and trachea were collected, and cloacal swabs were harvested for virus recovery and histological studies. Birds of the inoculated group showed clinical signs (64%) and mortality (42.8%). The clinical signs (sneezes, ruffled plumage, isolation and lethargy) started at day 4 after inoculation. The 43% of birds showed nervous signs (opisthotonos and tremors of head and neck) and 21% had diarrhea. In the necropsy was observed a widespread congestion and splenomegaly. The microscopic injuries were edema, gliosis, mononuclear perivascular cuffing in brain and cerebellum, loss of cillia, lymphoid infiltration in trachea, lung congestion, proventricular congestion, lymphocitic infiltration in intestines, and lymphoid depletion in spleen. The inoculated group showed the highest antibody titer (4.9) in the second week. The viral recovery was made upon lung and trachea tissues. It was showed that the specie Columba livia was susceptible to the experimental inoculation with a velogenic strain of Newcastle diasease virus.

Translated title of the contributionSusceptibility of wild pigeons (Columba livia) to a velogenic viscerotropic Newcastle disease virus under experimental conditions
Original languageSpanish
Pages (from-to)41-48
Number of pages8
JournalRevista de Investigaciones Veterinarias del Peru
Volume16
Issue number1
DOIs
StatePublished - 2005
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2005 Universidad Nacional Mayor de San Marcos. All rights reserved.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Fingerprint Dive into the research topics of 'Susceptibility of wild pigeons (Columba livia) to a velogenic viscerotropic Newcastle disease virus under experimental conditions'. Together they form a unique fingerprint.

Cite this