A viral infectious disease that is a hemorrhagic fever, has_material_basis_in Machupo virus, which is transmitted_by vesper mouse, Calomys callosus. The infection has_symptom fever, has_symptom headache, has_symptom fatigue, has_symptom myalgia, has_symptom arthralgia, has_symptom bleeding from the oral and nasal mucosa, and has_symptom bleeding from the bronchopulmonary, gastrointestinal and genitourinary tracts.