Tnf and Ly6i expression in PR8 or X31 infected LET-1 cells.

<p>LET-1 cells were infected with either PR8 (red) or X31 (green) and relative levels of endogenous (<b>A</b>) Tnf and (<b>B</b>) Ly6i transcripts determined from RNA isolated at specified time points. Error bars represent SEM for n=2.