Genetic Diversity of Norovirus among Children with Gastroenteritis in São Paulo State, Brazil

Castilho, Juliana Galera; Munford, Veridiana; Resque, Hugo Reis; Fagundes-Neto, Ulysses; Vinjé, Jan; Rácz, Maria Lucia

doi:10.1128/jcm.00279-06

Cited by 59 publications

(67 citation statements)

References 37 publications

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“…GI has been described as a genogroup that circulates to a lesser extent than GII (Castilho et al 2006, Victoria et al 2007, Barreira et al 2010. The evaluation of outbreaks that occurred in Japan during [2002][2003][2004][2005][2006] revealed that only one out of 12 outbreaks was caused by GI (Shinkawa et al 2008).…”

Section: Discussionmentioning

confidence: 99%

“…GII.6 circulated in PE (Northeast Region), ES, MG, RJ and SP (Southeast Region) from 2003(Castilho et al 2006, Barreira et al 2010.…”

Section: Discussionmentioning

confidence: 99%

“…Global NoV analysis was performed by grouping the nucleotide sequences obtained in this study with all previous NoV VP1 region D sequences from Brazilian strains for which data was available on GenBank (Castilho et al 2006, Victoria et al 2007, Ferreira et al 2008, Barreira et al 2010. The data analysis showed a great diversity of NoV strains circulating in the country, including GI.2, GI.3, GI.6, GII.2, GII.3, GII.4, GII.6, GII.7, GII.8, GII.12, GII.14, GII.16 and GII.17.…”

Section: Discussionmentioning

confidence: 99%

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Genetic diversity of noroviruses in Brazil

Fioretti

Ferreira

Victoria

et al. 2011

Mem. Inst. Oswaldo Cruz

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Section: Discussionmentioning

confidence: 99%

“…GII.6 circulated in PE (Northeast Region), ES, MG, RJ and SP (Southeast Region) from 2003(Castilho et al 2006, Barreira et al 2010.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Genetic diversity of noroviruses in Brazil

Fioretti

Ferreira

Victoria

et al. 2011

Mem. Inst. Oswaldo Cruz

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“…There are few studies evaluating the prevalence of NoVs in Brazil and most concern outbreaks at day-care centers or among hospitalized children, showing a prevalence of 8.6 to 33.3% (10)(11)(12)(13)24). The present report determined the frequency and the genetic diversity of NoVs in children up to three years of age, with acute gastroenteritis, living in the shantytowns of the city of Salvador, BA, in Northeast Brazil, and also determined RV-A and HAstV genotypes previously identified in these same stool samples (2).…”

Section: Discussionmentioning

confidence: 99%

“…Modest information is available concerning the role of these viruses in endemic pediatric gastroenteritis. The knowledge of the genetic diversity of these viruses is limited to studies in children from day-care centers and hospitals (10)(11)(12)(13)(14). The prevalence and genotype diversity of calicivirus strains circulating in low-income communities is rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Detection of caliciviruses associated with acute infantile gastroenteritis in Salvador, an urban center in Northeast Brazil

Xavier

Oliveira

Ferreira

et al. 2009

Braz J Med Biol Res

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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 the previously detected group-A rotaviruses and human astroviruses was also performed and revealed the circulation of rotavirus group A genotypes G1P[8] and G9P [8], and human astrovirus genotypes 6, 7, and 8. No mixed infection was observed. Community-based studies provide geographically representative information on disease burden. However, there are only a few reports in developing countries concerning the genotypes of the most important gastroenteric viruses detected in such communities. The present findings demonstrate the wide diversity of genotypes of the most important viruses responsible for acute gastroenteritis circulating in low-income communities.

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Molecular characterization of calicivirus strains detected in outbreaks of gastroenteritis in Argentina

Gomes

Stupka

Gómez

et al. 2007

Journal of Medical Virology

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Eight outbreaks of acute gastroenteritis occurred in Argentina in 2004 were tested for the presence of Calicivirus, Rotavirus and Astrovirus as possible causative agents. Caliciviruses were found in 39 out of the 100 tested samples, followed by six Astrovirus-positive samples and two Rotavirus-positive samples. Thirty-seven out of the 39 Calicivirus-positive samples were typed as Norovirus while the remaining two were typed as Sapovirus. Sequence and phylogenetic analyses of 13 Norovirus-positive samples revealed the presence of strains from the genogroups GI, GII, and GIV. Six Norovirus strains were grouped with the GIV-1 strains, three with the GIIb strains, two with the Farmington Hill-cluster (GII-4) strains, and the remaining two with the GI strains. To our knowledge, this study constitutes the first report of molecular epidemiology of human Caliciviruses associated to gastroenteritis outbreaks in Argentina and the circulation of GIIb and GIV-1 strains in South-America.

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Genetic Diversity of Norovirus among Children with Gastroenteritis in São Paulo State, Brazil

Cited by 59 publications

References 37 publications

Genetic diversity of noroviruses in Brazil

Genetic diversity of noroviruses in Brazil

Detection of caliciviruses associated with acute infantile gastroenteritis in Salvador, an urban center in Northeast Brazil

Molecular characterization of calicivirus strains detected in outbreaks of gastroenteritis in Argentina

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