Infectious Diseases of the United States is one in a series of GIDEON ebooks which summarize the status of individual infectious diseases, in every country of the world. Data are based on the GIDEON web application (gideononline.com) which relies on standard text books, peer-review journals, Health Ministry reports and ProMED, supplemented by an ongoing search of the medical literature.Chapters are arranged alphabetically, by disease name. Each chapter is divided into four sections:1. Descriptive epidemiology2. Summary of clinical features3. Status of the disease in the United States4. ReferencesThere are 351 generic infectious diseases in the world today. 241 of these are endemic, or potentially endemic, to the United States. A number of other diseases are not relevant to the United States and have not been included in this book.The United States disease notes include separate sections on American Samoa, Guam, the Northern Marianas, Puerto Rico, and the U.S. Virgin Islands.In addition to endemic diseases, all published data regarding imported diseases and infection among expatriates from the United States are included.