Detection of group C rotaviruses in Tokyo

Ushijima, Hiroshi; Honma, Hitoshi; Mukoyama, Atsushi; Shinozaki, Tatsuhiko; Fujita, Yuka; Kobayashi, Mariko; Ohseto, Mituaki; Morikawa, Shigeru; Kitamura, Takashi

doi:10.1002/jmv.1890270408

Cited by 36 publications

(25 citation statements)

References 12 publications

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“…Although several investigators have reported on the E type variation of CHRV field isolates [Penaranda et al, 1989;Ushijima et al, 1989;Schnagl et al, 2004], none have critically classified the E types of these isolates. In group A rotaviruses, E typing of field isolates is a useful tool for obtaining epidemiological information about the origin of the isolates and the diversity among these isolates, because each isolate reveals a unique genome profile [Ahmed et al, 1991;Bass and Greenberg, 1995].…”

Section: Discussionmentioning

confidence: 99%

Detection and molecular characterization of human group C rotaviruses in Okayama Prefecture, Japan, between 1986 and 2005

Kuzuya¹,

Fujii²,

Hamano³

et al. 2007

Journal of Medical Virology

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A survey of human group C rotaviruses (CHRVs) was conducted in Okayama Prefecture, Japan, over a period of 19 years between 1986 and 2005. The presence of CHRVs was screened by enzyme-linked immunosorbent assay using CHRV-specific monoclonal antibodies and confirmed by reverse transcription-PCR. Of the 3,722 fecal specimens from sporadic cases of gastroenteritis, 44 specimens (1.2%) were positive for CHRV. The CHRV isolates were detected periodically but continuously, and the rates of positivity changed from one rotavirus season to the next. Moreover, the isolates were mainly detected in April and May, and the mean age of the patients infected with CHRV was 5.27 years. The genome electropherotypes (E types) of the isolates were classified into three patterns, and the dominant pattern changed from year to year. Nucleotide sequences of the VP7 and VP4 genes of 16 strains, which were representatives of 70 isolates from sporadic cases and outbreaks, were determined and analyzed. Although the VP7 and VP4 genes of the strains were closely related to each other, a phylogenetic analysis suggested that each of the VP7 and VP4 genes of the strains were grouped into three genetic lineages. Moreover, the strains could be divided into five types based on the combination of the E type and the genetic lineages of the VP7 and VP4 genes. These results indicate that CHRVs generally exist in Okayama Prefecture and that CHRVs with various genomic backgrounds prevailed in a limited area.

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Section: Discussionmentioning

confidence: 99%

Detection and molecular characterization of human group C rotaviruses in Okayama Prefecture, Japan, between 1986 and 2005

Kuzuya¹,

Fujii²,

Hamano³

et al. 2007

Journal of Medical Virology

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“…Although similar Gp B outbreaks have not yet been reported outside China, recent descriptions of the association of Gp C rotaviruses with sporadic cases and a few outbreaks of diarrhea in several countries indicate that the latter group is globally distributed, and perhaps may emerge as an important new pathogen [1,3,[7][8][9]22]. For example, Gp C rotavirus outbreaks have been reported in several different areas of Japan [14,20,28]: in Matsuyama since 1988, Gp C rotavirus has been the most frequently identified virus in stool specimens in ill children 4 to 7 years of age [14]; human Gp C rotavirus infection was also reported in Tokyo in 1987 and 1988 during a 7 year survey [28]; and in Fukui, a large outbreak occurred among schoolchildren and their teachers at seven elementary schools in 1988 [20]. In addition, one fatal case of gastroenteritis associated with Gp C rotavirus has recently been reported in England [8].…”

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confidence: 98%

Comparison of human and porcine group C rotaviruses by Northern blot hybridization analysis

Qian

Saif

Kapikian

et al. 1991

Archives of Virology

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The genetic relationship between human and porcine Gp C rotaviruses and between Gp C and Gp A or B rotaviruses was examined by Northern blot hybridization. Cross-hybridization studies using radiolabeled ssRNA transcript probes demonstrated that the human and porcine Gp C rotaviruses shared a high degree of nucleotide sequence homology in most of the eleven gene segments; the greatest sequence divergence was observed in gene 7. Neither the human nor the porcine Gp C probe hybridized strongly with gene segments from Gp A reference strains or a Gp B bovine rotavirus. These data indicate that genetically, porcine and human Gp C rotaviruses are closely related, whereas they are quite distinct from Gp A or B suggesting that porcine and human Gp C rotaviruses may have evolved from a common ancestral source.

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“…Since then, they have been recognized in humans and animals, both in industrialized countries including Australia, United States, United Kingdom, Finland, and Japan and in developing countries or regions such as India, China, Malaysia, and Latin America (3,4,5,8,10,18,22,26,29,41). Thus, group C rotavirus strains are globally distributed and are thought to be one of the emerging pathogens in humans.…”

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confidence: 99%

Detection and Characterization of Human Group C Rotaviruses in Bangladesh

et al. 2005

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Group C rotaviruses were detected by reverse transcription-PCR in 14 (2.3%) of 611 group A rotavirusnegative stool specimens from the patients admitted to the International Centre for Diarrhoeal Disease Research, Bangladesh hospital, Dhaka, Bangladesh, during July to December 2003. The low rate of detection suggested that infection with group C rotaviruses was an uncommon cause of hospitalization due to gastroenteritis. In addition, coinfections with pathogenic enteric bacteria were frequently observed in group C rotavirus-infected patients. Nucleotide sequence comparison of the VP4, VP6, and VP7 genes revealed that the Bangladeshi group C rotaviruses were most similar to Nigerian group C rotavirus strains. Phylogenetic analysis suggested that all human group C rotaviruses, including the strains isolated in our study, clustered in a monophyletic branch, which was distantly related to the branch comprised of animal group C rotaviruses.

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Detection of group C rotaviruses in Tokyo

Cited by 36 publications

References 12 publications

Detection and molecular characterization of human group C rotaviruses in Okayama Prefecture, Japan, between 1986 and 2005

Detection and molecular characterization of human group C rotaviruses in Okayama Prefecture, Japan, between 1986 and 2005

Comparison of human and porcine group C rotaviruses by Northern blot hybridization analysis

Detection and Characterization of Human Group C Rotaviruses in Bangladesh

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