[1] UNIV BRITISH COLUMBIA, DEPT MICROBIOL, VANCOUVER V5Z 1M9, BC, CANADA
[2] VANCOUVER GEN HOSP, RES INST, VANCOUVER V5Z 1M9, BC, CANADA
[3] VANCOUVER GEN HOSP, DEPT MED GENET, VANCOUVER V5Z 1M9, BC, CANADA
[4] UNIV PERUANA CAYETANO HEREDIA, INST MED TROP ALEXANDER VON HUMBOLDT, INST NACL SALUD, CTR INVEST, LIMA, PERU