P29: EFFECTS OF VACCINATION ON INCIDENCE AND OUTCOME OF SARS-COV-2 INFECTION IN PATIENTS WITH MONOCLONAL GAMMOPATHY OF UNDETERMINED SIGNIFICANCE (MGUS). (5th April 2022) - Sgherza, N; Rizzi, R; Curci, P; Roccotelli, D; Croce, M; Avantaggiato, M; Ruga, L; Musto, P