Winter Dysentery
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Um enfoque multigênico para a genealogia comparada de Betacoronavirus em bovinos e equinos / A multigene approach for a compared genealogy of Betacoronavirus from cattle and horses
Gastroenteritis is one of the leading causes of morbidity and mortality amongst young and newborn animals, often caused by multiple intestinal infections, being rotavirus and Bovine coronavirus (BCoV) the main viral causes in cattle. BCoV has a worldwide distribution and caused diarrhea in calves, winter dysentery in adult cattle and respiratory disease, whi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/01/2011
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2. An outbreak of winter dysentery caused by bovine coronavirus in a high-production dairy cattle herd from a tropical country
O coronavirus bovino (BCoV) pode causar a diarreia de inverno (WD - Winter Dysentery) ao infectar bovinos adultos, particularmente em regiões de clima temperado ou frio. A morbidade da doença é alta, resultando em queda na produção de leite e, consequentemente, perdas econômicas. No presente estudo, é descrito um surto clássico de WD acometendo um re
Brazilian Archives of Biology and Technology. Publicado em: 2009-11
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3. Achados clínicos e patológicos em casos naturais e experimentais de disenteria de inverno em bovinos adultos.
Disenteria de inverno é uma doença causada pelo coronavírus bovino que afeta animais adultos. Descrevem-se dois surtos de disenteria de inverno em rebanhos leiteiros nos municípios de Viamão e Vespasiano Corrêa, Rio Grande do Sul. A doença foi reproduzida experimentalmente em dois bovinos adultos. O quadro clínico se caracterizou por diarréia, inici
Publicado em: 2009
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4. Molecular analysis of the bovine coronavirus S1 gene by direct sequencing of diarrheic fecal specimens
Bovine coronavirus (BCoV) causes severe diarrhea in newborn calves, is associated with winter dysentery in adult cattle and respiratory infections in calves and feedlot cattle. The BCoV S protein plays a fundamental role in viral attachment and entry into the host cell, and is cleaved into two subunits termed S1 (amino terminal) and S2 (carboxy terminal). Th
Brazilian Journal of Medical and Biological Research. Publicado em: 2008-04
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5. Disenteria de inverno: detecção de coronavírus bovino (BCoV) por reação de PCR dirigida ao gene Rp Rd e isolamento em cultivo celular de HRT-18G / Winter dysentery: detection of bovine coronavirus (BCoV) by RT-PCR for the Rp Rd gene and isolation in monolayers of HRT-18G cells
Bovine coronavirus (BCoV), a member of Coronaviridae family, causes severe diarrhea in newborn calves and has been associated with outbreaks of winter dysentery (WD) in adult cattle in several countries, including Brazil. The morbidity rate of WD is very high (50-100%) and the disease causes severe economic losses once it decreases milk production. The aim o
Publicado em: 2007
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6. Cell culture propagation of a coronavirus isolated from cows with winter dysentery.
Fecal filtrates from cows with winter dysentery were inoculated into gnotobiotic and conventional calves, and a coronavirus was isolated from calf feces. Cytopathic effects were observed on human rectal tumor cells but not bovine cell cultures. The winter dysentery isolates morphologically and antigenically resembled the Mebus strain of bovine coronavirus.
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7. Characterization of monoclonal antibodies to the hemagglutinin-esterase glycoprotein of a bovine coronavirus associated with winter dysentery and cross-reactivity to field isolates.
Seven hybridoma cell lines producing monoclonal antibodies (MAbs) to the hemagglutinin-esterase (HE) glycoprotein of bovine coronavirus (BCV) were obtained from BALB/c mice that were immunized with an enriched peplomeric fraction of the winter dysentery (WD)-associated strain BCQ.2590. The specificities of these MAbs to either the dimeric (140-kDa) or the mo
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8. Field study of bovine coronavirus vaccine enriched with hemagglutinating antigen for winter dysentery in dairy cows
A field study of a vaccine; prepared by solubilizing cells infected with bovine coronavirus, Triton X-100, and mixing with an oil adjuvant, was performed at 9 farms over 4 prefectures. The cattle tested were Holstein dairy cows aged 2 to 10 years. A vaccination group consisted of 157 animals (including 132 pregnant cows) and a non-vaccinated control group co
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9. Detection of group B rotaviruses in fecal samples from diarrheic calves and adult cows and characterization of their VP7 genes.
Groups A, B, and C rotaviruses have been identified in cattle. Group B rotaviruses are associated with sporadic cases of diarrhea in calves and adult cows. From diagnostic submissions to our laboratory, 90 fecal samples from cases of calf diarrhea, 81 fecal samples from cases of adult cow diarrhea (winter dysentery), and 20 fecal samples from case control no
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10. Dual Infection of Gnotobiotic Calves with Bovine Strains of Group A and Porcine-Like Group C Rotaviruses Influences Pathogenesis of the Group C Rotavirus
There is serological evidence that bovine group C rotaviruses exist in the United States, but there are no reports of their isolation. Ninety fecal samples from calves with diarrhea, 81 samples from adult cows with diarrhea (winter dysentery), and 20 fecal samples from healthy adult cows were tested for group C rotaviruses by polyacrylamide gel electrophores
American Society for Microbiology.