Authors: Francisco Alarcon-Chaidez; Raymond Ryan; Stephen Wikel; Kenneth Dardick; Caroline Lawler; Ivo M Foppa; Patricio Tomas; Alexis Cushman; Ann Hsieh; Andrew Spielman; Keith R Bouchard; Filiciano Dias; Jaber Aslanzadeh; Peter J Krause Journal: Clin Vaccine Immunol Date: 2006-08-23