title: Teixeira and Rodrigues Respond.
authors.affiliation: Maria G. Teixeira is with the Instituto de Saúde Coletiva-Universidade Federal da Bahia, Salvador, Brazil. Laura C. Rodrigues is with the London School of Hygiene and Tropical Medicine, London, England.
authors.forename: Maria G
authors.initials: MG
authors.lastname: Teixeira
authors.affiliation: Maria G. Teixeira is with the Instituto de Saúde Coletiva-Universidade Federal da Bahia, Salvador, Brazil. Laura C. Rodrigues is with the London School of Hygiene and Tropical Medicine, London, England.
authors.forename: Laura C
authors.initials: LC
authors.lastname: Rodrigues