Yellowish diarrhea in piglets: This type of diarrhea is common in piglets between 10 days and two weeks of age. In addition to yellowish and watery feces, weak animals are observed, with delayed growth and higher mortality rates. In the clinical case of this image, since no intestinal gas was observed, bacterial enterocolitis was discarded. The signs are compatible with swine coccidiosis caused by Isospora sp, and to confirm it, it is necessary to find and count oocysts by microscopy.