A new vaccine could vanquish a major cause of deadly diarrheal disease0

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• August 7, 2026

A medical illustration depicts the Shigella bacteria, a leading cause of diarrheal disease. Smith Collection/Gado via Getty Images hide caption toggle caption Smith Collection/Gado via Getty Images Diarrhea has been a headline story in the United States this summer, with thousands of cases of explosive diarrhea traced to Cyclospora from tainted lettuce –- and the