Do you mean how long do hey live in stool or in soil?
You can kill hookworms and their eggs with a solution of one part bleach to twenty parts of water sprayed on the sidewalks and soil where the animal has defecated.
Boric acid raked into the soil will kill the as well.
Do not let your children go barefoot as they can enter through the feet.
However, it is rare for kids to contract hookworms.
Just remove any feces and use the bleach solution.
I hope all will be well.
Warmest best wishes,
The clorox works immediately to kill them and disinfect the area.
However, wait one hour before letting them walk on the grounds.
No, they will NOT attach to shoes. They are unable to do so.
Unfortunately, if you don't spray the yard with the bleach solution the pests can live for months.
Get one of those lawn sprayers that attach to a hose and spray up the yards to be on the safe side.
You are more than welcome.
It has been my pleasure to help someone as lovely as you.
Thank you for your accept.
If you need anything further I will be here for you.
sending as an I R so U R not charged again!