1 University of Insubria, Department of Medicine and Technological Innovation, Italy; Ospedale di Circolo e Fondazione Macchi, Laboratory of Medical Microbiology and Virology, Italy. Electronic address: federica.novazzi@uninsubria.it.
2 University of Siena, Department of Medical Biotechnologies, Italy.
3 Ospedale Filippo del Ponte Ostetricia e Ginecologia, Neonatology and NICU, Del Ponte Hospital, Varese, Italy.
4 University of Insubria, Department of Medicine and Technological Innovation, Italy; Ospedale di Circolo e Fondazione Macchi, Laboratory of Medical Microbiology and Virology, Italy.
5 University of Insubria, Department of Medicine and Surgery, Italy.