Vaccines   

Is there a role for booster vaccination and if so, how do you approach the timing when a patient is already on a biologic for immunosuppression? 

E.g., for a patient with myeloma, s/p induction therapy, and high-dose chemotherapy, followed by autologous rescue with inappropriate antibody respons...

For example, in patients who are HbSAg negative, anti-HBc positive and HbSAb negative, does vaccination reduce reactivation risk?

If a deficiency is present, do you consider IVIG to treat non-infectious symptoms such as skin rash, arthritis or hematological abnormalities? 

E.g., inflammatory polyarthritis or inflammatory myopathy with onset within 2 weeks of documented COVID infection