What symptom commonly associated with Trichinosis can lead to difficulty breathing?

Swelling of the face is a notable symptom associated with Trichinosis that can lead to difficulty breathing. This condition is caused by a parasitic infection from eating undercooked meat that contains the larvae of the Trichinella species. The parasites can cause inflammation and edema, particularly around the eyes and face, which can obstruct breathing passages and lead to respiratory distress.

While abdominal pain, fever, and diarrhea are common symptoms associated with the illness, they do not directly relate to the respiratory complications that can arise from facial swelling. Abdominal pain is more localized to gastrointestinal discomfort resulting from the infection, fever indicates the body's immune response, and diarrhea is a symptom of the digestive upset caused by the parasites. None of these symptoms are primarily linked to breathing difficulties, making swelling of the face the correct choice in this context.