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| Xavier,M.P.T.P.; Oliveira,S.A.; Ferreira,M.S.R.; Victoria,M.; Miranda,V.; Silva,M.F.M.; Strina,A.; Barreto,M.L.; Miagostovicht,M.P.; Leite,J.P.G.. |
| Acute gastroenteritis caused by viruses is one of the leading causes of infantile morbidity. The aim of the present study was to investigate the presence of human caliciviruses of the genera norovirus and sapovirus in children up to 3 years of age with acute gastroenteritis from low-income communities in the city of Salvador, Brazil. This study is an extension of previous work carried out to establish the profile of the most prevalent enteric pathogens present in these communities. In this report, 139 fecal samples, collected from July 2001 to January 2002 were analyzed by RT-PCR and 13 (9%) were positive for human caliciviruses. By sequencing, seven isolates were characterized as norovirus genogroup GII and one as sapovirus genotype GII/1. Sequencing of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calicivirus; Sapovirus; Astrovirus; Rotavirus A; Gastroenteritis; Genotypes. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000500007 |
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| Portal,Thayara Morais; Siqueira,Jones Anderson Monteiro; Costa,Larissa Cristina Prado das Neves; Lima,Ian Carlos Gomes de; Lucena,Maria Silvia Sousa de; Bandeira,Renato da Silva; Linhares,Alexandre da Costa; Luz,Claudia Regina Nunes Eloi da; Gabbay,Yvone Benchimol; Resque,Hugo Reis. |
| ABSTRACT Gastroenteritis is one of the most common diseases during childhood, with norovirus (NoV) and sapovirus (SaV) being two of its main causes. This study reports for the first time the incidence of these viruses in hospitalized children with and without gastroenteritis in São Luís, Maranhão. A total of 136 fecal samples were tested by enzyme immunoassays (EIA) for the detection of NoV and by reverse transcription-polymerase chain reaction (RT-PCR) for detection of both NoV and SaV. Positive samples for both agents were subjected to sequencing. The overall frequency of NoV as detected by EIA and RT-PCR was 17.6% (24/136) and 32.6% (15/46), respectively in diarrheic patients and 10.0% (9/90) in non-diarrheic patients (p < 0.01). Of the diarrheic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Norovirus; Sapovirus; Gastroenteritis; Children. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000300724 |
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| Miura, Takayuki; Schaeffer, Julien; Le Saux, Jean-claude; Le Mehaute, Philippe; Le Guyader, Soizick. |
| We investigated removal of noroviruses, sapoviruses, and rotaviruses in a full-scale membrane bioreactor (MBR) plant by monitoring virus concentrations in wastewater samples during two gastroenteritis seasons and evaluating the adsorption of viruses to mixed liquor suspended solids (MLSS). Sapoviruses and rotaviruses were detected in 25% of MBR effluent samples with log reduction values of 3- and 2-logs in geometric mean concentrations, respectively, while noroviruses were detected in only 6% of the samples. We found that norovirus and sapovirus concentrations in the solid phase of mixed liquor samples were significantly higher than in the liquid phase (P < 0.01, t test), while the concentration of rotaviruses was similar in both phases. The efficiency... |
| Tipo: Text |
Palavras-chave: Norovirus; Sapovirus; Rotavirus; MBR; Mixed liquor suspended solids; Adsorption. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00414/52548/53441.pdf |
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