and the National Institute for Nuclear Physics (INFN), Bologna MODELS4COVID Study Group of the University of Bologna, Members: Federico Baldo, Armando Bazzani, Valerio Carelli, Gastone Castellani, Luca Clissa, Ilaria D’Ascanio, Stefano Diciotti, Francesco Durazzi, Enrico Lunedei, Antonio Macaluso, Michela Milano, Roberto Morelli, Serena Moscato, Luca Palmerini, Daniel Remondini, Giulia Roli, Michele Scagliarini, Roberto Spighi, Vincenzo Vagnoni, Antonio Zoccoli, Italy