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Journal of Clinical Microbiology, April 2002, p. 1390-1394, Vol. 40, No. 4
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.4.1390-1394.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Detection of a Human Rotavirus with G12 and P[9] Specificity in Thailand

Y. Pongsuwanna,1 R. Guntapong,1 M. Chiwakul,1 R. Tacharoenmuang,1 N. Onvimala,1 M. Wakuda,2 N. Kobayashi,3 and K. Taniguchi1,2*

Enteric and Respiratory Viruses Laboratory, National Institute of Health, Department of Medical Sciences, Nonthaburi 11000, Thailand,1 Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192,2 Department of Hygiene, Sapporo Medical University School of Medicine, Hokkaido 060-8556, Japan3

Received 19 September 2001/ Returned for modification 26 October 2001/ Accepted 22 January 2002

G12 rotavirus has not been detected anywhere in the world since the first detection of a human strain, L26 (G12, P1B[4]), in the Philippines in 1990. In this study, we isolated a human rotavirus (strain T152) with a VP7 of G12 specificity from the stool of an 11-month-old diarrheic patient in Thailand. The strain T152 exhibited a long RNA pattern and subgroup I specificity. In the comparison of the nucleotide and amino acid sequences of the VP7 gene of strain T152 with those of rotaviruses with different G type specificities, strain T152 showed the highest identity, 90.9 and 93.9%, respectively, to G12 prototype strain L26. In contrast, the VP4 gene of strain T152 showed the highest identity with P[9] specificity of human strains K8 and AU-1 and feline strains Cat2 and FRV-1, with homologies of 89.3 to 90.6% at the nucleotide level and 93.9 to 95.6% at the amino acid level. Thus, strain T152 was found to be a natural reassortant strain with G12 and P[9] specificities.

* Corresponding author. Mailing address: Department of Virology and Parasitology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan. Phone: 81-562-93-2467. Fax: 81-562-93-4008. E-mail: kokitani{at}fujita-hu.ac.jp.

Journal of Clinical Microbiology, April 2002, p. 1390-1394, Vol. 40, No. 4
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.4.1390-1394.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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