1 Instituto Nacional de Saude, Marracuene, Mozambique.
2 Scientific and International Affairs Department, Sante publique France, 12 rue du Val d'Osne, SAINT MAURICE Cadex, 94 415, France; International Association of National Public Health Institutes (IANPHI), 153 avenue de Tervueren, Woluwe-Saint Pierre, 1150, Belgium.
3 International Association of National Public Health Institutes (IANPHI), 153 avenue de Tervueren, Woluwe-Saint Pierre, 1150, Belgium. Electronic address: neil.squires@ianphi.org.