Persistent Clostridium difficile Colitis Mimicking A Fatal Case Of Strongyloides Hyperinfection Syndrome

•Patients from endemic areas and on chronic steroids should be screened for Strongyloides stercoralis.•Stool ova and parasite testing may detect Strongyloides when repeated stool samples are obtained.•Strongyloides antibody testing exhibits cross-reactivity with other helminths.•Agar-plate culture and the modified Baermann technique ideally diagnose infections caused by Strongyloides.