Centers for Disease Control and Prevention
Centers for Disease Control: Tetanus [Pdf]
This detailed article from the Centers for Disease Control on tetanus has information on the incubation period, symptoms, complications, and treatment. Included are charts showing the decline of tetanus cases in the United States as well...
New York State Dept. of Health
New York State Dept. Of Health: Tetanus Fact Sheet
Read brief responses to several questions about tetanus, which address how the disease is transmitted, how it is diagnosed, and how it is treated and prevented.