Persistent SARS-CoV-2 infection with multiple clinical relapses in two patients with follicular lymphoma treated with bendamustine and obinutuzumab or rituximab

Erica Franceschini, Mariachiara Pellegrino, Vera Todisco, Giovanni Dolci, Francesca Bettelli, Marianna Meschiari, Andrea Bedini, Giulia Fregni‐Serpini, Antonella Grottola, Giovanni Guaraldi, Monica Pecorari, Mario Sarti, Mario Luppi, Carlo Federico Perno, Cristina Mussini