By 4 hrs post H37Rv-infection the Ccl24 and Il12b genes continued to be significantly up-regulated compared to the uninfected pooled common reference (9.4 fold [P = 0.003] and 30.2 fold [P = 0.001], respectively), whereas the Clec4a2 and Pparg genes were down-regulated to a similar level as the uninfected pooled common reference (2.9 fold [P = 0.391] and 1.5 fold [P = 0.019], respectively). The gene discussed is IL12B; the disease is infection.