FIG. 4.

Evolution of chemokine receptor gene expression in lungs of C57BL/6 mice after a secondary challenge with eggs of S. mansoni. Chemokine receptor gene expression was measured by RNase protection assays using RNA from lung homogenates as described in the legend to Fig. 2. Values are the means of samples from three mice. ∗, P < 0.05 by two-tailed Student t test for comparisons between rIL-12-treated (filled circles, solid lines) and untreated (open circles, dotted lines) mice at a given time point. Some error bars are too small to be seen.