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Spilki,Fernando R.; Franco,Ana C.; Rijsewijk,Frans A. M.; Weiblen,Rudi; Flores,Eduardo F.; Roehe,Paulo M.. |
This study aimed the in vitro growth characterization of a previously constructed Brazilian bovine herpesvirus 1.2a with a deletion in the glycoprotein E gene (BHV-1.2a gE-). The plaque sizes, penetration and growth kinetics of the Brazilian BHV-1.2a gE- were studied and compared with the parental virus, as well as with a BHV-1.1 gE- recombinant derived from an European BHV-1.1 strain. No statistical differences were observed between the gE- recombinants and the respective parental viruses penetration assays were performed. When single step growth curves were studied, no statistical differences were observed between gE- and parental viruses. However, it was observed that both gE- viruses were excreted from cells in significantly higher titres at 11 hours... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Infectious bovine rhinotracheitis/infectious pustular vulvovaginitis; Differential vaccine; In vitro growth characteristics; GE- recombinant; BHV-1.2a; Bovine herpesviruses. |
Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000200017 |
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Silva,Adriana M. da; Flores,Eduardo F.; Weiblen,Rudi; Canto,Marister C.; Irigoyen,Luiz F.; Roehe,Paulo M.; Sousa,Renato S. de. |
This article describes the main aspects of bovine herpesvirus type-5 (BHV-5) neurologic infection and disease in rabbits, a candidate animal model for studying BHV-5 neuropathogenesis. Intranasal inoculation of weanling rabbits with a Brazilian BHV-5 isolate produced neurological disease and death in 78.8% (26/33) of the animals. Neurological signs started as early as 5 days post-inoculation and lasted from 10-12 hours up to several days. Most animals evolved to a moribund state or death within 24 (69.2%) to 48 hours (88.5%). Neurological disease was characterized by excitability or depression, tremors, bruxism, walking or running in circles, backward arching of the head and body, incoordination, backward and sideways falling, paddling, profound depression... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine herpesvirus type-5; BHV-5; Meningoencephalitis; Rabbits; Animal model. |
Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000100005 |
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