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Journal of Virology, April 2008, p. 4175-4179, Vol. 82, No. 8
0022-538X/08/$08.00+0     doi:10.1128/JVI.02537-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

The VP7 Genes of Two G9 Rotaviruses Isolated in 1980 from Diarrheal Stool Samples Collected in Washington, DC, Are Unique Molecularly and Serotypically{triangledown} ,{dagger}

Dianjun Cao,1 Norma Santos,1,2 Ronald W. Jones,1 Masatoshi Tatsumi,1,{ddagger} Jon R. Gentsch,3 and Yasutaka Hoshino1*

Epidemiology Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892,1 Departamento de Virologia, Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil,2 Gastroenteritis and Respiratory Viruses Laboratory Branch, Centers for Disease Control and Prevention, Atlanta, Georgia 303333

Received 27 November 2007/ Accepted 19 January 2008

In a retrospective study of archival diarrheal stool samples collected from 1974 to 1991 at Children's Hospital National Medical Center, Washington, DC, we detected three genotype G9P[8] viruses in specimens collected in 1980, which represented the earliest human G9 viruses ever isolated. The VP7 genes of two culture-adapted 1980 G9 viruses were phylogenetically related closely to the lineage 2 G9 virus VP7 gene. Unexpectedly, however, the VP7s of the 1980 G9 viruses were more closely related serotypically to lineage 3 VP7s than to lineage 2 VP7, which may be supported by amino acid sequence analyses of the VP7 proteins.

* Corresponding author. Mailing address: Epidemiology Section, Laboratory of Infectious Diseases, NIAID, NIH, Building 50, Room 6308, Bethesda, MD 20902. Phone: (301) 594-1851. Fax: (301) 480-1387. E-mail: thoshino{at}niaid.nih.gov

{triangledown} Published ahead of print on 30 January 2008.

{dagger} Supplemental material for this article may be found at http://jvi.asm.org/.

{ddagger} Present address: Department of Pediatrics, Sapporo Medical University, Sapporo, Japan.

Journal of Virology, April 2008, p. 4175-4179, Vol. 82, No. 8
0022-538X/08/$08.00+0     doi:10.1128/JVI.02537-07
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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