While hookworm certainly can be acquired through the skin in the soles of the feet, it is extremely unlikely that this parasite will infect anyone living in a developed country.

Hookworm typically lives only in infected animal feces within five days of excrement1 or in contaminated soils in tropical or sub-tropical climates.2

It cannot live on hard outdoor surfaces such as concrete and blacktop or indoor surfaces such as tile, lenolium, hardwood flooring or carpet. These surfaces do not provide adequate temperature or moisture to sustain its life.

Certainly, people who regularly come in contact with animal feces (such as farmers inside a barn or pig pen) should take precautions in these areas because they are at a higher risk for infection. If you have pets, make sure that they are de-wormed. Cover sandboxes in areas where animals have access so they do not defecate in the sand.

Persons who have been infected with hookworm can usually be easily treated with up to three doses of one of three medications.3

1. Howell, The Barefoot Book, 132 (2010)
2. http://www.wrongdiagnosis.com/artic/hookworm_infection_dpd.htm
3. http://www.getridofthings.com/parasites/get-rid-of-hookworm.htm