First detection of a human astrovirus type 8 in a child with diarrhea in Belém, Brazil: comparison with other strains worldwide and identification of possible three lineages
Mem. Inst. Oswaldo Cruz
;
102(4): 531-534, June 2007. ilus
Article
Dans Anglais
| LILACS
| ID: lil-454809
RESUMO
This study describes the genetic relationships of the first human astrovirus type-8 (HAstV-8) detected in Belém-Brazil, during a public hospital-based study. This strain was compared with other HAstV-8 strains identified elsewhere which have sequences available at GeneBank. The regions ORF1a (primers Mon348/Mon340) and ORF2 (primers Mon269/Mon270) were analyzed by nucleotide sequencing and a high similarity rate was observed among the Belém strain and other HAstV-8 strains. In ORF1a, homology values of 93-100 por cento were detected, and in ORF2 96-99 por cento. Considering the sequence variation (7 por cento) observed in ORF2 region, it was suggested that HAstV-8 strains could be divided in three different lineages.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Mamastrovirus
/
Infections à Astroviridae
/
Diarrhée du nourrisson
Type d'étude:
Etude diagnostique
/
Étude pronostique
Limites du sujet:
Femelle
/
Humains
/
Bébé
Pays comme sujet:
Amérique du Sud
/
Brésil
langue:
Anglais
Texte intégral:
Mem. Inst. Oswaldo Cruz
Thème du journal:
Médecine tropicale
/
Parasitologie
Année:
2007
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Fiocruz/BR
/
Ministério da Saúde/BR
/
Universidade Estadual do Pará/BR
/
Universidade Federal de Minas Gerais/BR
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