1. Clinic of Infectious Diseases, Department of Biomedical Sciences and Human Oncology, University of Bari, Bari, Italy;
2. Operational Research Unit, Doctors with Africa CUAMM, Padua, Italy;
3. Doctors with Africa CUAMM, Maputo, Mozambique;
4. Unicef Mozambique, Maputo, Mozambique;
5. Nucleo de Investigacao Operacional de Pemba, Pemba, Mozambique