Objective To know the infection source and prspread chain of 8 shigella outbreaks in Sichuan province in 2006.So as to support the forecast outbreak and policy-making on shigella control.Methods Analysis characteristics of molecular of shigella strains collected in 8 outbreaks of Sichuan province in 2006.Analysis the phylogenic relationship among the strains isolated during shigella outbreaks,among the strains isolated from different outbreaks.Shigella specific gene ipaH、shigella enterotoxin gene 1、shigella...