Diagnosis usually involves the examination of stool samples to identify [Cryptosporidium oocysts](). Various tests such as [enzyme immunoassays](), direct fluorescent antibody tests, and polymerase chain reaction (PCR) assays can be used for confirmation. It's important for healthcare providers to consider cryptosporidiosis in children presenting with prolonged diarrhea, especially if they have a history of exposure to potential sources of infection.
