Institution: | 1Centre for Tropical Diseases, “S. Cuore - Don Calabria” Hospital, Negrar;;2Unit of Paediatric Haematology/Oncology University Hospital of Pisa, Pisa;;3Infectious Diseases Unit, University Hospital of Pisa, Pisa; Italy;;4Centre for Community Epidemiology and Tropical Medicine (CECOMET), Esmeraldas, Ecuador |