ANCYLOSTOMIASIS (HOOKWORM)

The hookworms
most infections by adult worms are due to:

1. Ancylostoma duodenale

2. Necator americanus.

ANCYLOSTOMIASIS (HOOKWORM) 

Epidemiology, MORPHOLOGY AND LIFE CYCLE:

Nematoda

Nematoda (round worm)

ASCARIS LUMBRICOIDES (ROUNDWORM) 

This pale yellow nematode is 20-35 cm long. Humans are infected by eating food contaminated with mature ova. Ascaris larvae hatch in the duodenum, migrate through the lungs, ascend the bronchial tree, are swallowed and mature in the small intestine.