https://cdnph.upi.com/ph/st/th/3431783545125/2026/upi_com/80b0b73dffb4bf968212d23af3d82ffc/v1.5/Cases-of-explosive-diarrhea-illness-spike-throughout-United-States.jpg" /> Cases of cyclosporiasis, an infection that causes "explosive" diarrhea, are on the rise throughout the United States, health officials said Wednesday.