Safety, Efficacy of BNT162b2 mRNA Vaccine in CLL

Immune response to BNT162b2 mRNA vaccine is assessed on the basis of anti covid19 IgG levels. A centralized assessment of the serological response for 4 medical centers is performed on serum samples stored at -60 °C using Abbott-SARS-CoV-2 IgG quant (Positive value \> 151; range 0-40.000). The other 4 medical centers performed the test locally using DiaSorins-LAISISON SARS-CoV S1/S2 IgG test (positive value \>15 range 15-400). In the central virus laboratory at the Chaim Sheba Medical center the test was done by Elisa-RDB (positive value \>1.1; range 1.1-10).