title: A foodborne outbreak of sapovirus linked to catered box lunches in Japan.
abstract: Sapovirus (SaV) is a common cause of acute viral gastroenteritis worldwide, and SaV outbreaks have become more frequent in recent years. In January 2010, an outbreak of acute gastroenteritis due to SaV occurred in Aichi, Gifu and Mie Prefectures, Japan. The illness was strongly associated with eating a delivered box lunch prepared by one catering company. In total, 655 (17.1 %) of 3827 individuals developed gastroenteritic symptoms. SaV was detected in seven of the nine people who became ill and in seven of the 52 food handlers at the catering company, but all the tested samples were negative for norovirus and enteropathogenic bacteria. Sequence analysis of RT-PCR products indicated that the nucleotide sequences of SaV strains from the people who became ill and the food handlers were identical. The detected SaV strains were genogrouped as SaV genotype I.2. This was the largest foodborne outbreak of sapovirus in Japan.
authors: Laboratory of Virology, Aichi Prefectural Institute of Public Health, 7-6 Nagare, Tsuji-machi, Kita-ku, Nagoya, Aichi, Japan. shinichi_kobayashi@pref.aichi.lg.jp
authors: Shinichi
authors: S
authors: Kobayashi
authors: Noriko
authors: N
authors: Fujiwara
authors: Yoshihiro
authors: Y
authors: Yasui
authors: Teruo
authors: T
authors: Yamashita
authors: Reiji
authors: R
authors: Hiramatsu
authors: Hiroko
authors: H
authors: Minagawa
mesh_terms: D017250:Caliciviridae Infections / Q000453:epidemiology* / Q000821:virology; D004196:Disease Outbreaks; D005243:Feces / Q000821:virology; D005511:Food Handling; D005759:Gastroenteritis / Q000453:epidemiology* / Q000821:virology; D005838:Genotype; D006801:Humans; D007564:Japan / Q000453:epidemiology; D062409:Lunch; D008969:Molecular Sequence Data; D010802:Phylogeny; D012367:RNA, Viral / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D029341:Sapovirus / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D017422:Sequence Analysis, DNA
chemical_list: D012367:RNA, Viral