1 Infectious Diseases Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy; Department of Health Sciences (DISSAL), University of Genoa, 16132 Genoa, Italy. Electronic address: [email protected].
2 Infectious Diseases Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy; Department of Health Sciences (DISSAL), University of Genoa, 16132 Genoa, Italy.