What does sammonella typhi bacteria do to cause typhoid?

Salmonella Typhi: When typhi fever runs the incubation period (stage i) without any particular signs. In stage ii, the first symptoms occur. The patient suffers from nonspecific symptoms such as headaches, body aches, possibly low-grade fever. In untreated cases, occurs within 2-3 days (typhus, greek mist) to a season-shaped rising high fever, with temperatures between 102 and 105.

Rapid multiplication: Typhoid is a potentially fatal illness--as the bacteria enter the body in the lower end of your small intestine where the body cells actually engulf them and then transported via lymphatics to elsewhere. The bateria multiple so fast/overwhelms the cells and actually cause them to burst releasing more bacteria. The bacteria also release toxins and together causing typhoid. Prevent is best!