[1] CIB, Cellular Biol & Immunogenet Unit, Medellin, Colombia
[2] CSIC, Inst Parasitol & Biomed Lopez Neyra, Granada, Spain
[3] Harvard Sch Publ Hlth, Dept Nutr, Boston, MA USA
[4] Harvard Sch Publ Hlth, Dept Epidemiol, Boston, MA USA
[5] Hosp Virgen Nieves, Serv Inmunol, Granada, Spain
[6] Univ Rosario, Sch Med, Medellin, Colombia