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Th1 and Th2 cytokine secretion pattern after immunization of mice with WRluc or MVAluc. Levels of IFN-γ and IL-10 in supernatants of lymphocyte cultures from mice inoculated with MVAluc or WRluc were measured after 72 h of restimulation in vitro in the presence of VV antigens (1 μg/ml). Averages from triplicate cultures are shown.
