To prevent cysticercosis, the following precautions should be taken:

• Wash your hands with soap and warm water after using the toilet, changing diapers, and before handling food.
• Teach children the importance of washing hands to prevent infection.
• Wash and peel all raw vegetables and fruits before eating. Avoid raw vegetables and fruits that cannot be peeled when traveling in developing countries.
• When in a developing country: Drink only bottled or boiled (for 1 minute) water or carbonated (bubbly) drinks in cans or bottles, do not drink fountain drinks or any drinks with ice cubes, and filter water through an "absolute 1 micron or less filter" AND dissolve iodine tablets in the filtered water.

More on: Handwashing

"Absolute 1 micron" filters can be found in camping/outdoor supply stores.