Assesment of the Immune Response to RSV Vaccine in Patients With Myeloma, Lymphoma and Hematological Leukemia

A prospective study in which hematological oncology patients who were vaccinated against RSV will undergo a blood test to assess their immune response to the vaccine. As part of the study, hematological oncology patients with CLL, lymphoma, acute leukemia, myelodysplastic syndrome, and multiple myeloma, who are being monitored at the Hematology Institute at Ichilov, will be offered a blood test to evaluate their immune response to the RSV vaccine (serology, neutralizing antibodies, and cellular response). In the study, a blood sample of up to 10 ml will be taken in a chemistry tube and blood bank on the day of vaccination and about one month after that. The serological test will be conducted in the hospital's virology laboratory. The test result and its significance will be communicated to the patient by the treating hematologist in TASMC clinic. In this group of patients, a follow-up will be conducted over a 12-month period (during routine clinic visits) to document the incidence of RSV infection and complications related to the vaccine.