The document discusses typhoid fever, caused by the Salmonella Typhi bacteria. It is contracted by consuming food or water contaminated with infected feces. Symptoms include prolonged fever for up to 4 weeks, abdominal pain, constipation, and rose-colored spots on the skin. Definitive diagnosis is made by isolating S. Typhi from blood, bone marrow or stool samples. Treatment involves antibiotics like fluoroquinolones or third-generation cephalosporins. Travelers can be vaccinated with either an oral or injectable vaccine to help prevent typhoid.