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Cross-reactive T cells T cells are inherently more cross-reactive than B cells because they recognize short peptide sequences presented on the major histocompatibility complex (MHC) rather than complex structural epitopes and because they can target conserved internal proteins rather than just surface and structural proteins that are accessible to antibodies on extracellular virus
They're protections
BAC water is sterile, nonpyrogenic water containing benzyl alcohol as a bacteriostatic preservative, supplied in a multiple-dose vial you can draw from repeatedly
Do not freeze the reconstituted solution
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