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Molecular characterization and genotyping of human rotavirus strains in Abidjan, Cote d'Ivoire.

Abstract : In this study, we characterized human rotavirus strains recovered from infants and young children with acute diarrhea in Abidjan, Cote d'Ivoire, during 2000-2004. In total, 719 fecal specimens were collected from children aged 1-60 months with acute infantile gastroenteritis. Examination with a commercial enzyme-linked immunosorbent assay showed the presence of group A rotavirus antigen in 208 diarrheal specimens (28.9%). Polyacrylamide gel electrophoresis of the RNA extracted from rotavirus-positive stools yielded a variety of "long" and "short" RNA electropherotypes, which were used to help select strains for VP4 and VP7 genotyping. VP7 genotype G1 strains were circulating most commonly during the study period (53%), followed by G2 (22%) and G3 (5%) strains. Strains with multiple VP7 genotype reactivity were observed in 7.6% of specimens, and a similar number (8%) could not be typed at all. VP4 P[6] and P[8] strains circulated at similar levels (33%). Strains demonstrating multiple VP4 types were quite common (9%); however, 20% of the strains were untypeable by the methods used. Rotavirus strain diversity in Cote d'Ivoire was similar to that observed in other West African countries.
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Veronique Akran, I. Peenze, C. Akoua-Koffi, H. Kette, M. C. de Beer, et al.. Molecular characterization and genotyping of human rotavirus strains in Abidjan, Cote d'Ivoire.. Journal of Infectious Diseases, Oxford University Press (OUP), 2010, 202 (Suppl. 1), pp.S220-4. ⟨10.1086/653567⟩. ⟨pasteur-00758398⟩

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