1 Vita-Salute San Raffaele University, Milan 20132, Italy. Electronic address: bottanelli.martina@hsr.it.
2 Infectious Diseases Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
3 Vita-Salute San Raffaele University, Milan 20132, Italy.
4 Vita-Salute San Raffaele University, Milan 20132, Italy; Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Scientific Institute, Milan, Italy.
5 Vita-Salute San Raffaele University, Milan 20132, Italy; Infectious Diseases Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.