P29: EFFECTS OF VACCINATION ON INCIDENCE AND OUTCOME OF SARS-COV-2 INFECTION IN PATIENTS WITH MONOCLONAL GAMMOPATHY OF UNDETERMINED SIGNIFICANCE (MGUS) - N Sgherza; R Rizzi; P Curci; D Roccotelli; M Croce; M Avantaggiato; L Ruga; P Musto (HemaSphere, 2022)