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Fatores de risco para a infecção de Toxoplasma gondii em ovinos da região norde...

Toxoplasma gondii e um parasita cuja infecção leva a desordens reprodutivas como aborto, mumificação fetal, nascimento de cordeiros fracos e natimortos, provocando perdas econômicas na produção ovina. A região nordeste do Brasil possui aproximadamente 171 milhões de pequenos ruminantes, dos quais 5,4% são ovinos. Este estudo tem como objetivo determinar a ocorrência de T. gondii nos rebanhos ovinos de 60 propri...

Occurrence of viral diseases in donkeys (Equus asinus) in São Paulo State, Brazil

Among the diseases that affect equines, viral diseases play an important role from a health and economic point of view, especially influenza, viral arteritis, herpes infections and vesicular stomatitis. In the Brazilian literature, there is little or no account of the occurrence of infectious diseases in donkeys. Given the importance of donkeys in different activities and the lack of information on infections t...

Pesquisa de anticorpos IgG para Neospora caninum e avaliação dos fatores de ris...

Serological survey of equine encephalomyelitis virus infection in the state of ...

The occurrence of Equine Eastern Encephalomyelitis (EEE), Equine Western Encephalomyelitis (WEE) and Equine Venezuelan Encephalomyelitis (VEE) virus infection was investigated in equids not vaccinated against these viruses. The animals were distributed  in ten regional districts of the state of Minas Gerais (Almenara, Bambuí, Curvelo, Governador Valadares, Montes Claros, Oliveira, São Gonçalo do Sapucaí, Teófil...

Soroprevalência da arterite viral equina em mesorregiões paulistas entre 2007 e...

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Prevalência de anticorpos contra o vírus da Influenza em equinos não vacinados ...

The prevalence of antibodies against Equine Influenza Virus (EIV) was determined in 529 equines living on ranches in the municipality of Poconé, Pantanal area of Brazil, by means of the hemagglutination inhibition test, using subtype H3N8 as antigen. The distribution and possible association among positive animal and ranches were evaluated by the chi-square test, spatial autoregressive and multiple linear regre...

Serologic survey of small ruminants lentiviruses (Maedi-Visna and caprine arthr...

The aim of this study was to carry out the serological occurrence of Maedi-Visna virus (MVV) and CAE virus (CAEV) in ovines and caprines breeding in São Paulo state. The test to detect MVV and CAEV antibodies was agar gel immunodiffusion (AGID). The detection of antibodies against MVV was 0,3% (4/1235) and against CAEV was 15,1% (30/199). Was carried analysis of risk factors associated with the presence of posi...

Occurrence of leukoencephalomalacia in equids in São Paulo state, Brazil: anato...

O trabalho relata a ocorrência de leucoencefalomalácia em equídeos (LEME) com sintomatologia nervosa e com diagnóstico negativo para raiva, herpesvírus equino e encefalomielite equina durante o período de dois anos, no Estado de São Paulo, Brasil. Foram examinadas 67 amostras de sistema nervoso central e em 10,4% (cinco equinos, um pônei e um asinino) observaram-se lesões macroscópicas de LEME, confirmadas pela...

Serological survey of equine herpesvirus infection in Minas Gerais state

Os herpesvírus equinos tipo 1 (HVE-1) e 4 (HVE-4) são agentes causadores de diferentes formas de doença em cavalos, das quais as mais comuns são a rinopneumonite, o abortamento, a mortalidade perinatal e a mieloencefalopatia herpética equinas, que causam grandes perdas econômicas. Tem sido descrita mundialmente, havendo poucos estudos no Brasil. O objetivo do presente trabalho foi estudar a ocorrência e a distr...

Detection of equid herpesvirus 1 DNA by polymerase chain reaction after experim...

Seven conventional adult horses were inoculated intranasally with a Brazilian A4/72 strain of equid herpesvirus-1 (EHV-1). In the first ten days after the inoculation, they showed signs of a mild, self- limiting upper respiratory tract infection. In spite of the presence of neutralizing antibodies before the trial, seroconversion was observed in some horses. The virus was not isolated from nasal swabs and perip...