The South to north variation of norovirus epidemics from 2006-07 to 2008-09 in Japan.

ABSTRACT:

Background

Norovirus (NoV) is a major cause of gastroenteritis during the autumn and winter seasons in Japan as well as in other temperate climate regions. Most outbreaks are thought to occur by secondary attacks through person-to-person infection by fecal-oral route. Severe cases are found in young children or patients with chronic diseases. Clarifying the patterns of epidemic diffusion is important for considering effective monitoring and surveillance as well as possible prevention.

Methods

We considered the predominant viral genotype from the laboratory result obtained from Infectious Agents Surveillance Report (IASR) of National Institute of Infectious Diseases (NIID). We investigated the increase of NoV cases nationwide for the 2006-07 to 2008-09 seasons using sentinel

SUBMITTER: Inaida S 

PROVIDER: S-EPMC3747177 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature