text: <unk> a is a severe bacterial gastrointestinal, diarrheal disease. In its most severe forms,<unk>  is one of the most rapidly fatal illnesses known. A healthy person may become hypotensive within an hour of the onset of symptoms and may die within 2-3 hours if no treatment is provided. More commonly, the disease progresses from the first liquid stool to shock in 4-12 hours, with death following in 18 hours to several days without rehydration treatment.
option_0: Cholera future or investigational therapies
option_1: Measles future or investigational therapies
option_2: Vaccine controversy
option_3: Tuberculosis cost-effectiveness of therapy
option_4: Tuberculosis future or investigational therapies
option_5: Malaria future or investigational therapies
option_6: Tuberculosis primary prevention
option_7: Malaria cost-effectiveness of therapy