Micro 74: Nematodes

Clinical Deep Dives · Mar 4, 2026 · 54m

This episode introduces nematodes, or roundworms, the most diverse group of helminths affecting humans. Drawing from Murray’s Chapter 74, it explores their morphology, transmission, and disease patterns.

Nematodes are cylindrical, unsegmented worms with separate sexes. Infection typically occurs through:

* Ingestion of eggs (e.g., Ascaris lumbricoides)

* Skin penetration by larvae (e.g., hookworms, Strongyloides)

* Vector transmission (e.g., filarial worms)

Disease patterns vary by life cycle:

* Intestinal nematodes - abdominal pain, obstruction, nutritional impairment

* Tissue-migrating…