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Hi, i`m Richard, a Veterinarian from the UK. Hopefully I can help today.
If you are worried about human family members picking up hookworms, the transmission is via contact with unprotected skin on the ground where the worm eggs penetrate the soil/sand. As long as you are good with general hand hygiene - eg washing hands after you have played with your dog, washing hands before you eat etc, along with wearing shoes when outisde, to prevent exposure to the ground from bare feet, your exposure risk is minimal. Be especially prudent to wash your hands after clearing up your dogs poop! Hookworms are readily killed by routine worming treatment and worming your dog every 3 months should be enough to keep on top of any environmental contamination.
a good information resource can be found at the CDC. https://www.cdc.gov/parasites/zoonotichookworm/