A major cause of traveler's diarrhea is bacteria called Enterotoxigenic E. coli, or ETEC. Medical researchers have discovered how ETEC works to cause disease. They are using this information in an effort to develop a preventive vaccine for travelers.

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A major cause of traveler's diarrhea is bacteria called Enterotoxigenic E. coli, or ETEC. Medical researchers have discovered how ETEC works to cause disease. They are using this information in an effort to develop a preventive vaccine for travelers.