January 28, 2022 Dr. Saltzman: Some Good News on Response to a Third Dose of SARS-CoV-2 mMRA Vaccines in CLL/SLL Patients and Others with Blood Cancers LLS (Leukemia and Lymphoma Society) has been doing extensive longitudinal research led by Dr. Larry Saltzman on blood cancer patients’ responses to SARS-CoV-2 vaccines.