[The development of homeopathy in the United States].

After an enormous spread in the United States of America during the 19th century homeopathy had almost completely vanished from the scene by the beginning of the 20th century. For the past two decades, however, it seems once again to experience a kind of renaissance. Major aspects of this development-in terms of medical and cultural history, sociology, politics, and economics-are illustrated on the basis of a general history of homeopathy in the United States. Using original sources, a first attempt is made to reconstruct the history of homeopathy in San Francisco which has some institutional peculiarities that make it unique within the whole country.