Assertion: malaria's symptom | /r/HasProperty | gastrointestinal problems
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Source sentences:
text: The most common symptoms of malaria include a headache, fatigue, gastrointestinal problems (upset stomach, nausea, vomiting, and diarrhea), and muscle aches.﻿﻿ Malaria is also characterized by cycles of fever that last from six to 24 hours, alternating with chills, shaking, and sweating.