| detection of group c rotaviruses in tokyo. | four human group c rotaviruses were detected in tokyo in 1987 and 1988 during a survey over 7 years. among the four rotaviruses, two electrophoretic patterns were indicated by polyacrylamide gel electrophoretic (page) analyses. clinical symptoms, signs, family history, and patients' ages varied. group c rotaviruses were found also in other parts of japan in 1988. it was suspected that group c rotaviruses would continue to spread throughout japan within the near future. | 1989 | 2542437 |
| [epidemiology of rotavirus infection around tokyo area]. | epidemiology of rotavirus infection was studied from 1981 to 1988 mainly in three hospitals around tokyo area. major serotypes of rotaviruses in the three places were different from those in two hospitals around kansai area in japan (ref. 6, 13), while, major serotypes were same among three hospitals. both of serotypes 1 and 4 in group a were mostly found around tokyo area. frequencies of type 2, 3, and 9 in group a were low, although the frequencies were various among periods. detail examinatio ... | 1989 | 2559123 |
| [an outbreak of gastroenteritis due to group c rotavirus in tokyo]. | in april 1991, an outbreak of acute gastroenteritis due to group c rotavirus occurred at an elementary school in tokyo. fifty-one (13%) of 393 students became ill. the main clinical symptoms were diarrhea (100%), abdominal pain (68%) and vomiting (56%). no enteropathogenic bacteria were found in the fecal specimens. however, the virus particles morphologically indistinguishable from conventional rotavirus were detected in 6 of 11 fecal specimens by electron microscopy. immune electron microscopy ... | 1993 | 8385687 |
| etiologic agents of acute gastroenteritis among japanese infants and children: virus diversity and genetic analysis of sapovirus. | a total of 371 fecal specimens from infants and children with acute gastroenteritis in maizuru, tokyo and osaka, japan from july 2002 to june 2003 were tested for the presence of diarrheal viruses by reverse transcription-polymerase chain reaction (rt-pcr), reverse passive hemagglutination (prha), rna-polyacrylamide gel electrophoresis (page), latex agglutination and sequence analysis methods. among diarrheal viruses detected, group a rotavirus was the most prevalent (42.2%) followed by noroviru ... | 2005 | 15789264 |
| viral diarrhea in japanese children: results from a one-year epidemiologic study. | a total of 557 fecal specimens from infants and children with acute gastroenteritis in five places (maizuru, tokyo, sapporo, saga and osaka) in japan from july 2002 to june 2003 were tested for the presence of diarrheal viruses by rt-pcr, prha, rna-page and latex agglutination methods. of these, 56.4% (314) were found positive for diarrheal viruses. among them, group a rotavirus was the most prevalent (43.6%, 137 of 314) followed by norovirus (29.9%, 94 of 314), adenovirus (7.6%, 24 of 314), gro ... | 2005 | 15819174 |