Pharmacology Anthelmintic Agents Practice Test 2025 – All-in-One Study Guide for Exam Success!

Enterobius vermicularis is the correct answer for the type of helminth infection commonly referred to as a pinworm infection. This small, white nematode is prevalent, particularly among children, and is often transmitted through the fecal-oral route. The infection is characterized by symptoms such as anal itching, irritability, and difficulty sleeping due to the nocturnal behavior of the adult female worms that migrate to the anus to lay their eggs.

Differentiating this from other helminths is important: Ascaris lumbricoides is known as the giant roundworm and causes ascariasis; Necator americanus, commonly called the hookworm, leads to anemia and protein deficiency; and Taenia solium, the pork tapeworm, can cause taeniasis and cysticercosis. Each of these has distinct life cycles, transmission routes, and clinical manifestations, which highlights the specific nature of pinworm infections and the importance of identifying Enterobius vermicularis as the causative agent for effective treatment and management.