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Proportion of Sporadic Gastroenteritis Cases Caused by Rotavirus, Norovirus, Adenovirus and Bacteria in Japan from January 2000 to December 2003
Author(s) -
Sumi Ayako,
Kobayashi Nobumichi,
Ohtomo Norio
Publication year - 2005
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.2005.tb03665.x
Subject(s) - norovirus , rotavirus , virology , incidence (geometry) , biology , virus , etiology , acute gastroenteritis , norwalk virus , outbreak , caliciviridae , microbiology and biotechnology , medicine , physics , optics
Many kinds of virus and bacterium have been identified as pathogens that cause sporadic gastroenteritis (SG). Among the pathogens, rotavirus (RV), norovirus (NV; previously known as Norwalk‐like virus), and adenovirus (AdV) types 40/41 have been considered as the prevalent viruses implicated in the aetiology of childhood gastroenteritis. In the present study, we attempted to estimate monthly proportions of SG cases caused by the viral agents (RV, NV, AdV and other viruses (OV)) and bacterial agents in the whole of Japan. The estimation was carried out by using time series data of the incidence of SG and the viral and bacterial agents of SG, which were collected by a nationwide surveillance system in Japan from January 2000 to December 2003. It was confirmed that, in the dominant period of RV and NV, the proportion of RV‐associated SG and that of NV‐associated SG indicate almost same level with each other: 46–69% during February–May for RV, and 41–75% during October–December for NV.