c) Exemplar genes differentially expressed at 4 hours and 24 hours, respectively, between infants who experienced a fever within 24 hours of vaccination and afebrile infants. The plotted lines are the LOESS (locally estimated scatterplot smoothing) regression curves with the 95% confidence intervals in grey. The false-discovery rate (FDR) was derived by comparing fold-changes in gene expression between infants who experienced post-vaccination fever and those who remained afebrile. P-values were obtained from the moderated t-statistic, after adjustment for multiple testing (Benjamini and Hochberg's method). Pre-vaccination samples n= 125, 4 hour samples n= 28, 24 hour samples n = 31, 3 day sample n= 30, 7 day samples n= 36. 