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Correlation of the concentration of β-chemokines with type-1 (a; IFN-γ) or type-2 (b; IL-4) T helper responses. In animals protected from vaccine challenge a correlation of β-chemokines produced just before challenge (RANTES, MIP-1α, and MIP-1β) was found with both the number of IFN-γ- and IL-4-secreting cells. Protected animals have high numbers of all three β-chemokines produced in relationship with both the number of gp120-specific IFN-γ- and IL-4-secreting cells.
