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Journal of Clinical Microbiology, December 2005, p. 6171-6175, Vol. 43, No. 12
0095-1137/05/$08.00+0 doi:10.1128/JCM.43.12.6171-6175.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
Frequent Importation of Enterovirus 71 from Surrounding Countries into the Local Community of Yamagata, Japan, between 1998 and 2003
K. Mizuta,1*
C. Abiko,1
T. Murata,1
Y. Matsuzaki,2
T. Itagaki,3
K. Sanjoh,4
M. Sakamoto,5
S. Hongo,2
S. Murayama,1 and
K. Hayasaka1
Department of Microbiology, Yamagata Prefectural Institute of Public Health, Yamagata, Japan,1
Department of Infectious Diseases, Yamagata University School of Medicine, Yamagata, Japan,2
Yamanobe Pediatric Clinic, Yamagata, Japan,3
Sanjoh Clinic, Yamagata, Japan,4
Department of Pediatrics, Yamagata City Hospital, Saiseikan, Yamagata, Japan5
Received 26 July 2005/
Returned for modification 6 September 2005/
Accepted 23 September 2005
Phylogenetic analysis of 45 enterovirus 71 (EV71) isolates for 6 years in Yamagata, Japan, clarified that the annual outbreak of hand-foot-and-mouth disease was due to four genetically distinct subgenogroups, including a novel "B5." Our results suggest that the importation of EV71 from surrounding countries has had a major epidemiological impact on the local community used in our study.
* Corresponding author. Mailing address: Department of Microbiology, Yamagata Prefectural Institute of Public Health, Tokamachi 1-6-6, Yamagata, 990-0031 Japan. Phone: 81-23-627-1109. Fax: 81-23-641-7486. E-mail:
mizutak{at}pref.yamagata.jp.
Journal of Clinical Microbiology, December 2005, p. 6171-6175, Vol. 43, No. 12
0095-1137/05/$08.00+0 doi:10.1128/JCM.43.12.6171-6175.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
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