Ribavirin? is administered to a patient in a dosage range which is effectiveto modulate lymphokine expression in activated T cells. In particular,Ribavirin? is used to suppress Th2-mediated T cell responses and promote Th1-mediated T cell response. In other aspects of the invention, one or moreRibavirin? analogs are administered to a patient in a dosage range which iseffective to modulate lymphokine expression in activated T cells. TheRibavirin? analog(s) may be used to suppress or enhance Th1 or Th2-mediated Tcell responses.
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