Mebendezole/Albendezole and going barefoot
Fel-6 (mebendezole) and Zentel (albendezole) are available everywhere with instructions for taking. They are exactly the same medecine used for cats and dogs. A 200mg dose in the pet aisle of a US supermarket costs $1.95. At the pharmacy it costs $15 plust $60 for a first visit to a physician to get a prescription. They are completely side-effect free and should be taken twice a year, or when you have symptoms. I used it on my children 45 years ago in south Florida when they got pin worms.
Not only hookworm but viruses can penetrate through the feet, not mentioning "mossy-foot" and various fungi infections. Some larvae that enter through the skin from the soil can grow worms as long as 1-2 meters, at least in Africa. Walking barefoot on coral and volcanic soils can lead to Kaposi malignacies and odd viral infections. Celulitus (elephantisis) can be caused by staph entering lower limb scar tissue -- I know, I got it that way. As well as cholera, malaria, six kinds of salmonellas/paratyphoids in Asia and the Caribbean/South America.
BTW it's not typhoid fever, but PARAtyphoid. I don't believe much typhoid, if any, exists here (Rocky Mountain fever, etc.).
Point is: don't go barefoot in the tropics! Cook all meats well-done, and do the things in my previous post. If you have a rain-catch with a cistern that you filter and once in a while treat with a bit of chlorine, you can make ice, coffee, brush your teeth, etc. Public sources of water, usually not. It isn't Kansas anymore. It's a whole lot better.