Eggs easy to ingest because they have a sticky adhesin that sticks them to fomites. The eggs are very hardy. They are resistant to drying etc. Get them under fingeranils when scratching. Often inhaled in house dust.
Eggs mature in the intestine.
The mature females go outside the anus to lay eggs at night when child is sleeping. Explain the scotch tape test . Hard to get rid of since reinfection by fomites common. Necator americanus causes hookworm Infection doesn't happen by ingesting eggs. This time the larvae use cutting teeth to enter skin directly.