Rotavirus Genetic
Mostrando 1-12 de 78 artigos, teses e dissertações.
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1. G26P[19] rotavirus A strain causing acute gastroenteritis in the American continent
In Brazil, the rotavirus A genotype G26 was first identified in suckling piglets, while the P[19] genotype has not been identified in any animal species so far. This report details the genetic characterisation of a G26P[19] RVA strain detected from an eight year-old child, vaccinated with Rotarix®, hospitalised with acute diarrhoeal disease in Rio de Janeir
Mem. Inst. Oswaldo Cruz. Publicado em: 29/11/2018
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2. Detection and genetic characterization of Mamastrovirus 5 from Brazilian dogs
Abstract Mamastrovirus 5 (MAstV5), belonging to the Astroviridae (AstV) family, previously known as canine astrovirus or astrovirus-like particles, has been reported in several countries to be associated with viral enteric disease in dogs since the 1980s. Astroviruses have been detected in fecal samples from a wide variety of mammals and birds that are assoc
Braz. J. Microbiol.. Publicado em: 2018-09
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3. Characterisation of a rare, reassortant human G10P[14] rotavirus strain detected in Honduras
BACKGROUND Although first detected in animals, the rare rotavirus strain G10P[14] has been sporadically detected in humans in Slovenia, Thailand, United Kingdom and Australia among other countries. Earlier studies suggest that the strains found in humans resulted from interspecies transmission and reassortment between human and bovine rotavirus strains. OB
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-01
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4. Diversity of group A rotavirus genes detected in the Triângulo Mineiro region, Minas Gerais, Brazil
ABSTRACT Group A rotaviruses are the main causative agent of infantile gastroenteritis. The segmented nature of the viral genome allows reassortment of genome segments, which can generate genetic variants. In this study, we characterized the diversity of the VP7, VP4 (VP8*), VP6, NSP4, and NSP5 genes of the rotaviruses that circulated from 2005 to 2011 in th
Braz. J. Microbiol.. Publicado em: 2016-09
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5. Molecular characterisation of the NSP4 gene of group A human rotavirus G2P[4] strains circulating in São Paulo, Brazil, from 1994 and 2006 to 2010
Group A human rotaviruses (HuRVA) are causative agents of acute gastroenteritis. Six viral structural proteins (VPs) and six nonstructural proteins (NSPs) are produced in RV-infected cells. NSP4 is a diarrhoea-inducing viral enterotoxin and NSP4 gene analysis revealed at least 15 (E1-E15) genotypes. This study analysed the NSP4 genetic diversity of HuRVA G2P
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-09
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6. Identification of pathogens and virulence profile of Rhodococcus equi and Escherichia coli strains obtained from sand of parks
The identification of pathogens of viral (Rotavirus, Coronavirus), parasitic (Toxocara spp.) and bacterial (Escherichia coli, Salmonella spp., Rhodococcus equi) origin shed in feces, and the virulence profile of R. equi and E. coli isolates were investigated in 200 samples of sand obtained from 40 parks, located in central region of state of Sao Paulo, Brazi
Braz. J. Microbiol.. Publicado em: 20/08/2013
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7. Rotavirus G2P[4] and G2P[4]+[6] infections during norovirus gastroenteritis outbreak: summer season 2010, Brazil
IntroductionThis study aimed to monitor the seasonality of rotavirus infection, and gain insight into the variability of Brazilian strains.MethodsA total of 28 stool samples were analyzed from 698 revised cases of gastroenteritis during a norovirus outbreak in the summer of 2010 in Guarujá, Brazil. Diagnosis was performed using enzyme-linked immunosorbent a
Rev. Soc. Bras. Med. Trop.. Publicado em: 2013-04
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8. Molecular characterization of G and P-types bovine rotavirus strains from Goiás, Brazil: high frequency of mixed P-type infections
In this study, 331 samples from calves less than one month old from a dairy herd in the district of Piracanjuba, state of Goiás, Brazil were tested for rotavirus. Thirty-three samples (9.9%) tested positive for rotavirus. Out of those, 31 were submitted to G and P characterization by reverse transcription followed by semi-nested polymerase chain reaction. T
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-12
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9. Genetic analysis of the porcine group B rotavirus NSP2 gene from wild-type Brazilian strains
Group B rotaviruses (RV-B) were first identified in piglet feces, being later associated with diarrhea in humans, cattle, lambs, and rats. In human beings, the virus was only described in China, India, and Bangladesh, especially infecting adults. Only a few studies concerning molecular analysis of the RV-B NSP2 gene have been conducted, and porcine RV-B has
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-01
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10. Diversidade genética dos rotavírus humanos detectados em pacientes com diarréia aguda no Estado de São Paulo, no período de 1996 a 2006. / Genetic diversity of human rotaviruses detected in patients with acute diarrhea in São Paulo, during 1996 to 2006.
Um total de 8.961 amostras fecais coletadas de pacientes com diarréia aguda, no período de 1996 a 2006, no Estado de São Paulo foi testado para rotavírus por EIE. Destas, 20,0% foram positivas e posteriormente realizadas a caracterização dos rotavírus em genótipos G e P por nested RT-PCR. O genótipo G1 de rotavírus foi o mais freqüente, detectado
Publicado em: 2010
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11. Caracterização molecular dos genes de VP1, VP2, VP3, VP4 e VP7 de amostras de rotavírus a genótipo GP5[8] circulando no Brasil entre 1985 e 2005 / Molecular characterization of genes VP1, VP2, VP3, VP4 and VP7 of rotavirus samples from the genotype GP5 [8] circulating in Brazil between 1985 and 2005
Nas décadas de 80 e início de 90 os rotavírus A (RV-A) de genótipo G5, comum em suínos, equinos e bovinos eram detectados com frequência em amostras fecais de crianças brasileiras. Após 1996, deixou de circular em caráter endêmico, tornando-se apenas esporadicamente detectado, enquanto o genótipo G9 começou a ser detectado com frequência. Esta s
Publicado em: 2009
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12. Torque teno vírus: diversidade genética e avaliação, na Bacia Amazônica, do seu potencial como marcador de poluição antrópica / Torque teno virus: genetic diversity and evaluation in the Basin Amazon, its potential as a tracer of anthropogenic pollution
O torque teno virus (TTV) é um vírus DNA, com genoma circular de fita simples com grande variabilidade genética apresentando caráter ubiqüitário, altíssima prevalência em indivíduos sadios ou não, viremia constante e independente de surtos ou sazonalidade, resistência e distribuição global. A presença do TTV no ambiente se configura como uma fo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/09/2008