Last reviewed: November 16, 2025 The conditions and treatments that CDC specifies may result in moderate or severe immunocompromise include but are not limited to : Active treatment for solid tumor and hematologic malignancies Hematologic malignancies associated with poor responses to COVID-19 vaccines regardless of current treatment status (e.g., chronic lymphocytic leukemia, non-Hodgkin lymphoma, multiple myeloma, acute leukemia) Receipt of solid-organ transplant or an islet transplant and taking immunosuppressive therapy Receipt of chimeric antigen receptor (CAR)-T-cell therapy or hematopoietic cell transplant (HCT) (within 2 years of transplantation or taking immunosuppressive therapy) Moderate or severe primary immunodeficiency (e.g., common variable immunodeficiency disease, severe combined immunodeficiency, DiGeorge syndrome, Wiskott-Aldrich syndrome) Advanced HIV infection (people with HIV and CD4 cell counts less than 200/mm, history of an AIDS-defining illness without immune reconstitution, or clinical manifestations of symptomatic HIV) or untreated HIV infection Active treatment with high-dose corticosteroids (i.e., 20 mg or more of prednisone or equivalent per day when administered for 2 or more weeks), alkylating agents, antimetabolites, transplant-related immunosuppressive drugs, cancer chemotherapeutic agents classified as severely immunosuppressive, tumor necrosis factor (TNF) blockers, and other biologic agents that are immunosuppressive or immunomodulatory (e.g., B-cell-depleting agents) Additional factors to consider in assessing the general level of immune competence in a patient include disease severity, duration, clinical stability, complications, comorbidities, and any potentially immune-suppressing treatment
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Sadly it seems that even some of our newly qualified doctors replace their old knowledge with the following ridiculous ideas- Vitamin B12 = Broccoli Vitamin B12 injections = Placebo Vitamin B12 deficient patient = Lazy, whiny, hypochondriac requiring antidepressants and a thorough dressing down
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Supplementation for Restricted Diets Those on plant-based or restricted diets such as vegans or individuals with food allergiesmay benefit from B2 supplementation , especially if dietary intake is insufficient
