Table 4. Immune reconstitution criteria... | American Society of Hematology

Table 4.

Immune reconstitution criteria for considering repeat vaccination attempts in nonresponders

Criteria
Detectable serum IgA* (>6 mg/dL) AND
CD19⁺ or CD20⁺ B-cell count >20 cells/mm³AND
CD4⁺ T-cell count >200 cells/mm³

Indicates potential ability to “class switch.”