This simple CDC graphic may answer many of your questions about what is probably safe and what is not during the COVID-19 pandemic. If you have CLL, put yourself in with those who are unvaccinated on the left. CLL Society (not the CDC) added the speech bubble. Guidance may change as we learn more. But for now, most CLL experts are recommending that their immunized chronic lymphocytic leukemia patients act as if they are not protected against COVID-19. This is not meant as medical advice but is CLL Society guidance for now.