title: [Two cases of group A rotavirus outbreak among adults].
abstract: Two cases of group infections with the group A rotavirus (ARV) occurred among adult residents at welfare facilities. Case 1 occurred at a care facility for the elderly between March and April of 2000, where 14 patients aged 68 to 93 (average: 85) of 93 residents developed cardinal symptoms of diarrhea, vomiting and fever. ARV was found in 7 stool samples and their G-serotype was G2. Case 2 occurred at a facility for the disabled in April 2006, where 15 patients aged 28 to 64 (average: 48) of 51 residents developed cardinal symptoms of diarrhea, vomiting and fever. ARV was found in 11 stool samples and their G-serotype was G1. The ARV route of infection was not specified in either case. Since G2 was identified among sporadic diarrheas in the general public during the 1999/2000 season when Case 1 occurred, and similarly for G1 during the 2005/2006 season for Case 2, there may be an associations between group-infection cases among adults and sporadic diarrhea in the general public. Of the three types of antigen detection kit and RT-PCR used to detect ARV for this study, RT-PCR showed the highest detection. RT-PCR was considered to be the most effective in detecting the virus for group infection cases.
authors.affiliation: Yamanashi Institute for Publich Health.
authors.forename: Takaya
authors.initials: T
authors.lastname: Yamagami
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yokoyama
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003967:Diarrhea / Q000821:virology; D004196:Disease Outbreaks; D006707:Homes for the Aged; D006801:Humans; D008875:Middle Aged; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012401:Rotavirus / Q000302:isolation & purification; D012400:Rotavirus Infections / Q000821:virology*; D012759:Sheltered Workshops