You can contract this disease when you eat pork or pork products that contain the live worms, round in shape and microscopic in size, that are called trichinae. Although most people associate trichinosis with pig meat only, other animal flesh, including deer and bear, can also be contaminated. After you eat infected meat, the parasites lodge and reproduce in your intestines. Their larvae enter the bloodstream, travel to your muscles, and , while growing there, cause pain, fever, muscle deterioration, and sometimes death.

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