Norovirus
Mostrando 13-24 de 88 artigos, teses e dissertações.
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13. Virologia ambiental e saneamento no Brasil: uma revisão narrativa
Os serviços de saneamento básico têm papel fundamental no controle da transmissão de diversos agentes patogênicos de veiculação hídrica, especialmente vírus responsáveis por causar gastroenterites agudas e hepatites. Entre os agentes virais de maior impacto para a saúde pública, podem ser destacados os vírus das hepatites A, os rotavírus e noro
Cad. Saúde Pública. Publicado em: 2014-07
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14. Acute gastroenteritis and enteric viruses in hospitalised children in southern Brazil: aetiology, seasonality and clinical outcomes
Viral acute gastroenteritis (AG) is a significant cause of hospitalisation in children younger than five years. Group A rotavirus (RVA) is responsible for 30% of these cases. Following the introduction of RVA immunisation in Brazil in 2006, a decreased circulation of this virus has been observed. However, AG remains an important cause of hospitalisation of p
Mem. Inst. Oswaldo Cruz. Publicado em: 2014-07
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15. Detection of enteric viruses in activated sludge by feasible concentration methods
Human enteric viruses are responsible to cause several diseases, including gastroenteritis and hepatitis, and can be present in high amounts in sewage sludge. This study compared virus recovery efficiency of two feasible concentration methods used for detecting human adenovirus (HAdV), rotavirus species A (RV-A), norovirus genogroup II (NoV GII) and hepatiti
Braz. J. Microbiol.. Publicado em: 2014
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16. Detection of the pandemic norovirus variant GII.4 Sydney 2012 in Rio Branco, state of Acre, northern Brazil
Noroviruses (NoVs) are important cause of gastroenteritis in humans worldwide. Genotype GII.4 is responsible for the majority of outbreaks reported to date. This study describes, for the first time in Brazil, the circulation of NoV GII.4 variant Sydney 2012 in faecal samples collected from children aged less than or equal to eight years in Rio Branco, state
Mem. Inst. Oswaldo Cruz. Publicado em: 11/10/2013
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17. Group A rotavirus and norovirus display sharply distinct seasonal profiles in Belém, northern Brazil
Several viruses have been associated with acute gastroenteritis (AGE), and group A rotavirus (RVA) and nor-ovirus (NoV) are the most prevalent. This study aimed to assess their prevalence among children hospitalised for diarrhoea during a three-year surveillance study. From May 2008-April 2011, overall positivity rates of 21.6% (628/2904) and 35.4% (171/483)
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-08
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18. 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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19. The efficiency of concentration methods used to detect enteric viruses in anaerobically digested sludge
The presence of enteric viruses in biosolids can be underestimated due to the inefficient methods (mainly molecular methods) used to recover the viruses from these matrices. Therefore, the goal of this study was to evaluate the different methods used to recover adenoviruses (AdV), rotavirus species A (RVA), norovirus genogroup II (NoV GII) and the hepatitis
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-02
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20. Genotyping of gastroenteric viruses in hospitalised children: first report of norovirus GII.21 in Brazil
This retrospective study (April-September 2003) was designed to investigate the roles of the main viruses responsible for cases of acute infantile gastroenteritis in hospitalised children up to two years of age. The viruses were identified in 64.7% (88/136) of the cases and the detection rates of rotavirus A (RVA), norovirus (NoV) and astrovirus were 41.9% (
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-12
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21. Detection of enteric viruses in recreational waters of an urban lagoon in the city of Rio de Janeiro, Brazil
The aim of this study was to determine the occurrences of the group A rotavirus (RVA), norovirus (NoV) and human adenovirus (HAdV) in the surface waters of an urban lagoon (Rodrigo de Freitas Lagoon) in the city of Rio de Janeiro, Brazil. During one year of surveillance, water samples were obtained from the lagoon and other interconnected ecosystems (river a
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-09
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22. Viral acute gastroenteritis: clinical and epidemiological features of co-infected patients
BACKGROUND: Acute gastroenteritis (AGE) is a common disorder that affects children worldwide. It is usually caused by viral agents, including rotavirus, enteric adenovirus, norovirus, and astrovirus groups. Currently, there are few reports about co-infection among these viruses, mainly in Brazil. METHODS: This is a retrospective study in which 84 rotavirus-p
Brazilian Journal of Infectious Diseases. Publicado em: 2012-06
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23. Genetic diversity of noroviruses in Brazil
Norovirus (NoV) infections are a major cause of acute gastroenteritis outbreaks around the world. In Brazil, the surveillance system for acute diarrhoea does not include the diagnosis of NoV, precluding the ability to assess its impact on public health. The present study assessed the circulation of NoV genotypes in different Brazilian states by partial nucle
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-12
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24. Caracterização molecular de cepas de rotavírus e norovírus: um estudo de 6 anos (2004-2009)
OBJETIVO: Monitorar infecções causadas por rotavírus (RV) e norovírus (NoV) em crianças hospitalizadas < 5 anos com gastroenterite aguda provenientes do estado de São Paulo durante um período de 6 anos (2004-2009). MÉTODOS: Este estudo retrospectivo foi realizado em 61 centros médicos, utilizando amostras fecais coletadas por conveniência, analisad
Jornal de Pediatria. Publicado em: 2011-10