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Cyclospora outbreak spreads to four more states, including Pennsylvania

The largest U.S. cyclospora outbreak on record has expanded, linked to food contaminated by human feces.

Published Jul 24, 2026, 1:01 PM EDT | LehighValleyLive

Health officials say the U.S. is experiencing its largest-ever cyclospora outbreak, a microscopic parasite that infects food contaminated with human feces. The outbreak has expanded to four additional states, including Pennsylvania.