PB2087: EFFICACY OF A 3RD COVID VACCINE, INCLUDING DURING A BTKI PAUSE, IN INDIVIDUALS WITH WALDENSTRÖM MACROGLOBULINEMIA AND FOLLICULAR LYMPHOMA. (23rd June 2022) - Rankin, K.; Beaton, B.; Sasson, S.; Raedemaecker, J.; Wong, A.; Hastak, P.; Phetsouphanh, C.; Warden, A.; Patel, M.; Klemm, V.; Munier, C. M. L.; Carey Hoppe, A.; et al.