Relative mRNA expression levels in skin from uninfected and 7-day L. panamensis infected hamsters. Skin was harvested from the uninfected or infected snout at 7 days p.i. and the expression of multiple mRNAs determined by duplex real-time RT PCR. Results are expressed as a relative fold difference between experimental samples and BHK cells to which the value of 1 was arbitrarily assigned. For panels A, D, G, H, J and L the mean + SD are represented in the bar graph and statistical analysis utilized the unpaired t test. Data presented in panels B, C, E, F, I and K were not normally distributed so are shown as the median + interquartile range and the statistical analysis utilized the nonparametric Mann Whitney test. Each uninfected hamster is represented by a filled circle, and each infected hamster is represented by a filled square.