Enterotoxigenic E. coli worldwide are closely related

The strains of enterotoxigenic Escherichia coli (ETEC) that infect adults and children in Asia, Africa, and the Americas, have notably similar toxins and virulence factors, according to research published ahead of print in the Journal of Bacteriology. That bodes well for vaccine development, says corresponding author Åsa Sjöling, now of the Karolinska Institutet, Stockholm, Sweden. ETEC infects 400 million people annually, or 5.3 percent of the world's population, killing 400,000.

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