5 Unidad de Infectología Pediátrica del Hospital Nacional Edgardo Rebagliati Martins, Lima, Perú.
6 Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum - University of Bologna, Bologna, Italy.
7 Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli and Global Health Research Institute, Istituto Di Igiene, Università Cattolica del Sacro Cuore, Roma, Italia.