Which of the following intestinal parasites is NOT transmitted via the fecal-oral route?

Explanation

Giardia lamblia, Ascaris lumbricoides, and Entamoeba histolytica are all spread through the fecal-oral route, typically via contaminated food or water. However, Strongyloides stercoralis primarily infects humans through skin penetration, not by ingestion, making it the exception among these parasites.