Figure 4. Oocyts in Stool Smears Stained with Modified Acid-fast Stains.
A. Cryptosporidium sp.; B. Cyclospora cayetenensis; C. Cystoisospora (Isospora) belli. From: Centers for Disease Control and Prevention (Laboratory identification of parasites of public health concern).
From: HIV Web Study <www.hivwebstudy.org>