In Mtb-infected mice, both cDC1 and cDC2 are widely distributed and can be found in lymph nodes, blood and mucous membranes and migrate to the lung upon infection; however, after Mtb infection, CD103+ cDC1 is present in parenchyma and lung airways, with migratory ability to the dLNs (Geurtsvankessel et al., 2008; Geissmann et al., 2010; Guilliams et al., 2013; Leepiyasakulchai et al., 2013; Anderson et al., 2014). The gene discussed is MPPE1; the disease is infection.