title: [The discovery and study on invasive strain of Escherichia coli O121].
abstract: A strain of Enteroinvasive Escherichia coli was isolated from the stool with blood and mucus of a child suffering from acute diarrhea. The strain shows the following characteristics: rapid fermentation of glucose (with gas), no fermentation of lactose, beta-galactosidase reaction positive, growth in acetate media, lysine decarboxylase negative, non-motility causing keratoconjunctivitis in guinea pigs and invading into epithelial cells, with a plasmid of 140 Md, Serotype is O121:H- which is a new serotype of Enteroinvasive Escherichia coli.
authors.forename: Z S
authors.initials: ZS
authors.lastname: Yang
authors.forename: N J
authors.initials: NJ
authors.lastname: Huang
authors.forename: C F
authors.initials: CF
authors.lastname: Zhang
authors.forename: Z H
authors.initials: ZH
authors.lastname: Li
authors.forename: A M
authors.initials: AM
authors.lastname: Zhou
authors.forename: X Q
authors.initials: XQ
authors.lastname: Deng
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Zhou
mesh_terms: D002648:Child; D003967:Diarrhea / Q000382:microbiology*; D004926:Escherichia coli / Q000145:classification / Q000302:isolation & purification*; D005243:Feces / Q000382:microbiology*; D005260:Female; D006801:Humans; D012703:Serotyping