|
|
|
|
| |
|
|
| Nunes,Cristina Freitas; Fonseca,Fabiane; Leite,Alice Teixeira Meirelles; Silva Filho,Rodolfo Pinho da; Finger,Paula Fonseca; Castro,Clarissa Caetano; Fischer,Geferson; Vargas,Gilberto D'avila; Hübner,Silvia de Oliveira. |
| To investigate the exposure of the Newcastle disease virus (NDV), infectious bursal disease virus (IBDV) and avian poxvirus (APV) in Magellanic penguins found on the beaches in Southern regions of Brazil, the frequency of serum antibodies was estimated in 89 samples taken during 2005 and 2006. All the penguins were negative for the presence of antibodies against NDV by hemagglutination inhibition test and to APV by indirect ELISA. The reactivity was similar to the positives controls using ELISA kit for the IBDV made in the chickens in 50 samples. This reactivity also was demonstrated in 42 samples using agar gel immunodiffusion. No clinical signs related to IBDV infection were observed. The results indicated the absence of infection by NDV and APV but... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Magellanic penguins; Antibodies; Newcastle disease virus; Infectious bursal disease virus; Avian poxvirus. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400008 |
| |
|
|
| Thomazelli,LM; Araujo,J de; Ferreira,C de S; Hurtado,R; Oliveira,DB; Ometto,T; Golono,M; Sanfilippo,L; Demetrio,C; Figueiredo,ML; Durigon,EL. |
| Brazil is one of the world's largest countries with a rich diversity of wildlife, including resident and migratory wild birds, which may be natural reservoirs of the Newcastle disease virus (NDV). Because Brazil is a major global exporter of chicken meat, the emergence of such a disease may have a huge negative impact not only on the economy due to trade restrictions and embargoes, but also on the quality of life of the population. Samples were collected from 1,022 asymptomatic domestic and wild birds from the Brazilian coast and the Amazon region using tracheal/cloacal swabs and tested by RT-qPCR. The results showed 7 (0.7%) birds were positive for NDV. The positive samples were then isolated in embryonated chicken eggs and their matrix protein genes were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avian disease; Avian paramyxovirus; Newcastle disease virus; South America; Wild birds. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000100001 |
| |
|
|
| Wang,Y; Zhang,H; Gu,C; Cheng,G; Zhang,W; Mehmood,K; Hu,X. |
| ABSTRACT Newcastle disease is a highly contagious disease responsible for major outbreaks and considerable economic losses in the poultry industry in China. There is still little information available regarding gene characterization of the NDV, especially in ducks and pigeons. Therefore, the aim of this study was to investigate NDV isolated from ducks and pigeons in Hubei, China. In this study, three NDVs from ducks and pigeons were isolated between 2013 and 2015.The fusion protein (F) gene of the NDV isolates was sequenced and phylogenetically analyzed. The clinical signs and gross histopathological lesions were examined. Phylogenetic analysis of these strains indicated that all the sequences are classified as genotype II. The isolates shared a 112... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Newcastle disease virus; Phylogenetic analysis; Pathology; Ducks; Pigeons.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100145 |
| |
|
| |
|
|
| Guimarães,MB; Hurtado,R; Bello,CP; Vanstreels,RET; Ferreira,AJP. |
| ABSTRACT The geographic overlap between areas of Atlantic rainforest and human activities allows interactions to occur between humans and wild and domestic animals. Despite the great importance of the domestic animal-wildlife-human interface that occurs at poultry farms in terms of public health, economic production and wildlife conservation, there are few studies in Brazil examining the distribution and health of wild birds that interact with poultry farms. From January to December 2010, mist nets were used to capture 166 free-ranging birds that were within close proximity to three poultry farms in Atlantic rainforest remnants in south-eastern Brazil. The species composition was examined, and molecular methods were used to test for avian influenza virus,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Surveillance; Atlantic rainforest; Poultry farms; Wild birds; Influenza virus; Newcastle disease virus; Mycoplasma gallisepticum. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300387 |
| |
|
|
|
