| distribution of human rotaviruses, especially g9 strains, in japan from 1996 to 2000. | a 4-year (1996-2000) survey of rotavirus infection involving 2,218 diarrheal fecal specimens of children collected from five regions of japan was conducted. a total of 642 (28.9%) specimens were found to be rotavirus positive. a changed prevalence pattern of rotavirus g serotype was found with an increase of g9 and g2 and a decrease of g1, although g1 remained the prevailing serotype. serotype g9 was unexpectedly determined to be the prevailing serotype in sapporo (62.5%) and tokyo (52.9%) in 19 ... | 2003 | 14524620 |