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| Brandão,PE. |
| Rabies is a viral zoonotic infectious disease that affects mammals and is caused by genotypes/species of the Lyssavirus genus (Rhabdoviridae, Mononegavirales), with the genotype 1 (classic rabies virus - RABV) being the most prevalent. Despite continuous efforts, rabies is still an incurable disease that causes thousands of deaths amongst humans worldwide. Due to a wide range of hosts and the different evolutionary paths of RABV in each host, several host-specific variants have arisen in an ongoing process. The result of RABV replication in nervous tissues may lead to two opposite clinical outcomes, i.e., paralytic/dumb form and encephalitic/furious one. The paralytic form creates dead-end hosts mainly amongst herbivores, while the furious form of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rabies; Transmission; Disease ecology; Epidemiology; Immune response. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000200003 |
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| Villarreal,LYB; Assayag,MS; Brandão,PE; Chacón,JLV; Bunger,AND; Astolfi-Ferreira,CS; Gomes,CR; Jones,RC; Ferreira,AJP. |
| This article reports a survey on turkey astrovirus (TAstV) and turkey coronavirus (TCoV) infections with RT-PCR in 17 turkey flocks affected by acute enteritis and two apparently normal turkey flocks located in the Southeastern region of Brazil by PCR (TAstV and TCoV). Seven out of the 17 affected flocks were positive for TAstV and 14 for TCoV, with seven co-infections. In one of the two apparently normal flocks, a TAstV-TCoV co-infection was found. Although a definitive association of these agents and the signs can not be made, the implications of these findings are discussed. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Astrovirus; Coronavirus; Turkey; Enteritis; Diagnosis. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000200010 |
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| Villarreal,LYB; Uliana,G; Valenzuela,C; Chacón,JLV; Saidenberg,ABS; Sanches,AA; Brandão,PE; Jerez,JA; Ferreira,AJP. |
| Rotaviruses have been identified as one of the main etiological agents of diarrhea and enteritis in mammals, including humans, and in avian species. Few studies have been published about enteric viruses in Brazilian poultry, including those related to rotavirus infection. Such studies demonstrate significant occurrence and the importance of enteric viruses in poultry presenting intestinal problems. Enteric viruses are the primary cause of injuries to the gut, allowing other agents, especially bacteria, to attach, to penetrate, and to replicate in the enteric tissue, leading to further damage. The aim of the present study was to detect rotavirus in the intestinal contents of layers and broilers by polyacrylamide gel electrophoresis (PAGE) and virus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enteric viruses; Rotavirus; Isolation; MA104 cells; Chicken. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300009 |
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