Affiliation: | (1) Instituto de Inmunologia, Hospital San Juan de Dios, Avda 1 No. 10-01, Santafe de Bogota, D.C., Colombia, CO;(2) Swiss Tropical Institute, Socinstrasse 57, CH-4002 Basel, Switzerland e-mail: pluschke@ubaclu.unibas.ch Tel.: +41-61-2848235 Fax: +41-61-2718654, CH |