Lack of virulence factors in Escherichia coli strains of enteropathogenic serogroups isolated from water.
Thirty-eight Escherichia coli strains belonging to 14 human enteropathogenic serogroups were isolated from 33 of 208 water samples studied. No virulence factor or virulence-related gene sequences were found in any of the 38 strains analyzed. The results point out the importance of detecting specific virulence factors before incriminating water as a source of human diarrhea.
Valentini
S R
SR
Departamento de Ciências Biológicas, Faculdade de Ciências Farmacêuticas de Araraquara, Universidade Estadual Paulista, Araraquara, SP, Brazil.
Gomes
T A
TA
Falcão
D P
DP
D004926:Escherichia coli / Q000145:classification / Q000302:isolation & purification / Q000472:pathogenicity*; D006367:HeLa Cells; D006801:Humans; D012703:Serotyping; D014774:Virulence; D014871:Water Microbiology