Rotaviruses
Mostrando 1-12 de 452 artigos, teses e dissertações.
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1. FIRST MOLECULAR DETECTION AND VP7 (G) GENOTYPING OF GROUP A ROTAVIRUS BY SEMI-NESTED RT-PCR FROM SEWAGE IN NIGERIA
SUMMARY Rotavirus is the leading cause of viral gastroenteritis worldwide, and sewage is a major source of the virus dissemination in the environment. Our aim was to detect and genotype rotaviruses from sewages in Nigeria. One hundred and ninety sewage samples were collected between June 2014 and January 2015. The two phase concentration method using PEG 600
Rev. Inst. Med. trop. S. Paulo. Publicado em: 03/11/2016
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2. 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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3. Seasonal variation on the presence of adenoviruses in stools from non-diarrheic patients
Human adenoviruses (HAdV), members of the
Adenoviridae family, are excreted through the fecal route and may be present in the feces of humans consuming contaminated food or water. The presence of HAdV from different serotypes in the feces of healthy individuals was already reported using conventional polymerase chain reaction; however, reBraz. J. Microbiol.. Publicado em: 2015-09
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4. 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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5. Changes in epidemiology of rotavirus in the Triângulo Mineiro region of Brazil: lack of two consecutive rotavirus seasons
Rotaviruses are the main cause of infantile acute diarrhea, and a monovalent (G1P[8]) vaccine against the virus was introduced into the Brazilian National Immunization Program for all infants in March 2006. The objectives of this study were to determine the rate and genotype distribution of rotavirus causing infantile diarrhea in the Triângulo Mineiro regio
Braz J Med Biol Res. Publicado em: 23/09/2014
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6. Detection of human adenovirus, rotavirus and enterovirus in water samples collected on dairy farms from Tenente Portela, Northwest of Rio Grande do Sul, Brazil
Viral gastroenteritis and other waterborne diseases are a major concern for health in Brazil. A number of studies were conducted about the presence of viruses on water samples from Brazilian areas. However, the knowledge about the occurrence of viral contamination of drinking water sources in rural settings of the country is insufficient. On the present work
Braz. J. Microbiol.. Publicado em: 2013-09
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7. Detecção de rotavírus em amostras fecais de bovinos e água em propriedades rurais do vale do Paranhana, RS
The aim of present study was to assess a possible relationship between the contamination of water sources with animal husbandry in the region. In the localities belonging to Paranhana valley, the municipalities of Taquara, Rolante e Riozinho, were collected 104 water samples from different sources including tap water, ponds, dug wells, boreholes, streams, ri
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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8. Acute diarrhoea in a community cohort of children who received an oral rotavirus vaccine in Northeast Brazil
Rotavirus is an important cause of childhood diarrhoea. A monovalent rotavirus vaccine (Rotarix®) was introduced into the Immunization Program of Brazil in 2006. In this study, we describe the incidence and burden of disease of rotavirus diarrhoea in two cohorts of children (vaccinated and unvaccinated). We followed two groups of 250 children under one year
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-05
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9. Rotavirus A genotype G1P[8]: a novel method to distinguish wild-type strains from the Rotarix® vaccine strain
Rotaviruses are important enteric pathogens for humans and animals. Group A rotaviruses (RV-A) are the most common agents of severe gastroenteritis in infants and young children and vaccination is the most effective method to reduce RV-A-associated diseases. G1P[8], the most prevalent RV-A genotype worldwide, is included in the RV-A vaccine Rotarix®. The di
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-12
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10. 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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11. Detection and characterization of human rotavirus in hospitalized patients in the cities of Ponta Grossa, Londrina and Assai - PR, Brazil
Acute diarrheal disease is still one of the major public health problems worldwide. Rotaviruses (RV) are the most important viral etiologic agents and children under five years of age are the target population. OBJECTIVE: To investigate the rate of RV infection in hospitalized patients due to acute diarrhea in the cities of Ponta Grossa, Londrina and Assai -
Brazilian Journal of Infectious Diseases. Publicado em: 2010-12
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12. 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