FIG. 4.

CCL11 expression in response to RSV infection. (A) Levels of CCL11 mRNA in whole lungs of BALB/c mice following RSV infection were assessed by RNase protection assays. Some mice had been primed 2 to 3 weeks earlier with rVV-G, rVV-F, or rVV-βgal. Results are expressed as protected band intensity and are percentages of the intensity of the housekeeping genes L32 and GAPDH. *, P < 0.05 for comparison of rVV-G- and rVV-F-primed BALB/c mice. (B) CCL11 protein levels in cell-free BAL fluids from rVV-primed and RSV-infected BALB/c mice were assessed by ELISA. The limit of detection was 37.5 pg/ml (broken line).