As unsavory as it sounds, parasites are relatively common in the United States and other developed and developing countries. These microscopic moochers don't usually cause serious problems, but they can make some people seriously ill. The best way to reduce the risk of a parasitic infection is to always properly clean food, practice good hygiene, and avoid walking outside barefoot or swimming in unclean bodies of water.
Humans can become infected with intestinal tapeworms by ingesting eggs or larvae in foods and beverages. Tapeworms hide out in raw or undercooked meats of animals whose muscles hosted the larvae before slaughter. Prevent these parasites by always washing up well before cooking and eating and avoiding undercooked or potentially contaminated products.
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