Typhoid fever:

An infectious illness usually spread by contamination of food, milk, or water supplies with the bacterium Salmonella typhi, either directly by sewage, indirectly by flies, or by faulty personal hygiene. Fever, abdominal pain, malaise, prostration, and diarrhea or constipation are common. Without antibiotics, about 15% of cases can be fatal. Treatment with antibiotics has reduced mortality to less than 1% in the US. Modern, highly effective vaccines are recommended for travel to endemic areas.