[1] Ministerio Saude, Fdn Oswaldo Cruz, Ctr Pesquisas Goncalo Moniz, BR-40296710 Salvador, BA, Brazil
[2] Univ Fed Bahia, Sch Pharm, Salvador, BA, Brazil
[3] Hosp Couto Maia, Secretary Hlth State Bahia, Salvador, BA, Brazil
[4] Univ Fed Bahia, Sch Med, Salvador, BA, Brazil
[5] Cornell Univ, Weill Med Coll, Dept Med, Div Int Med & Infect Dis, Ithaca, NY 14853 USA