BBC Health: Typhoid - A feature on typhoid, its causes, and what vaccines are available to fight it.
Blue Book - Typhoid and Paratyphoid Fevers - Guidelines for the control of typhoid and paratyphoid fevers. Information on the infectious agent, clinical features, occurrence, diagnosis, mode of transmission, incubation period, and other details from the Public Health Division of the Government of Victoria, Australia.
CDC - Typhoid Fever - General information, precautions and treatment by Centers for Disease Control and Prevention.
The Most Dangerous Woman in America - Companion site to the NOVA television program that explores the complex case of Mary Mallon, also known as Typhoid Mary.
Typhoid Fever - Definition, who gets it, how it is spread, symptoms, treatment, prevention, and more information from the Utah Department of Health Bureau of Epidemiology.
What You Should Know About Typhoid Fever - Answers questions on how it is spread, how soon symptoms occur, how it is diagnosed, treatment, vaccine, and more from the official website of the state of New Jersey.
WHO Fact Sheet - Typhoid Fever - History, identification, occurrence, transmission, communicability, epidemic measures, disaster implications, prevention, and vaccination/travel advisory by the World Health Organization.
Wikipedia: Typhoid Fever - Information on the infamous Typhoid Mary as well as disease information.