Chagas Disease. the Use of Serology to Establish Drug Efficacy. Value and Limitations*

*Presented at the ”Consultative Meeting on the Strategic and Operational Aspects for the Clinical Development of Trypanocidal Drugs for Chagas Disease, 23-24 April 2007, Buenos Aires, Argentina.”, sponsored by TDR, WHO.This publication is dedicated to one of the authors (deceased) due to his life dedicated to Chagas disease and particularly to this subject. After 14 years, this material is still valid.