2007
DOI: 10.1590/s0074-02762007005000032
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Abstract: This study describes the genetic relationships of the first human astrovirus Human astrovirus (HAstVs) belongs to the Astroviridae family, and are classified in the genus Mamastrovirus (Monroe et al. 2005). They are small, round non-enveloped viruses, 28 nm in diameter and composed of a single-stranded positive-sense RNA genome (ssRNA). The genome contains three open reading frames (ORFs) designated ORF1a, ORF1b, and ORF2, as well as terminal non-coding regions (NCR). ORF1a and 1b encode non-structural prote… Show more

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Cited by 14 publications
(10 citation statements)
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“…Astrovirus detection occurred mainly in the first day of diarrhea, a finding similar to the results reported by Gabbay et al (2007). For adenovirus, the highest detection occurred in the third day, and for calicivirus, the highest positivity rates were observed on or after the fifth day of disease.…”
Section: Discussionsupporting
confidence: 88%
“…Astrovirus detection occurred mainly in the first day of diarrhea, a finding similar to the results reported by Gabbay et al (2007). For adenovirus, the highest detection occurred in the third day, and for calicivirus, the highest positivity rates were observed on or after the fifth day of disease.…”
Section: Discussionsupporting
confidence: 88%
“…Interestingly, in our study HAstV-1 was not detected, but HAstV-6, -7, and -8, reported to be rare, were the only genotypes observed. HAstV-6 and -7 were first reported in Brazil by Gabbay et al (38). The detection of HAstV-8 in 3 samples agrees with previous findings, suggesting that this is an emergent genotype (38,39).…”
Section: Discussionsupporting
confidence: 86%
“…Our data show the presence of RV-A G1P [8] and G9P [8], confirming that these two genotypes are those more frequently associated with RV-A illnesses worldwide (30)(31)(32)(33). In the city of Salvador, Most worldwide studies have shown that genotype HAstV-1 is the most prevalent, followed by HAstV genotype-2, -3, -4, and -5 (35)(36)(37)(38). Interestingly, in our study HAstV-1 was not detected, but HAstV-6, -7, and -8, reported to be rare, were the only genotypes observed.…”
Section: Discussioncontrasting
confidence: 55%
“…These data suggest that the concordance observed between the two genotyping techniques was 100%, which is higher than that found by Gabbay et al (2007a) (69.2%). HAstV-8 is not commonly found, or not found at all, in studies worldwide related to astroviruses genotyping (Sakamoto et al 2000, Schnagl et al 2002, Cardoso et al 2002, Galdiero et al 2005, Gabbay et al 2007b). Few studies have reported the detection of HAstV-8 in Brazil, such as described by Silva et al (2006).…”
Section: Discussionmentioning
confidence: 97%