Indeed, at day 6 post-infection, cDC1 (CD103+) and cDC2 (CD11b+) in the lung had ingested viral derived ZsGreen (Fig. 1F-G, S2A) and in the draining mediastinal lymph node (medLN) migratory cDC1 (mDC1) and cDC2 (mDC2) as well as lymph node resident populations of cDC1 (rDC1) and cDC2 (rDC2) all carried ZsGreen (Fig. 1H-I, S2B). Here, MPPE1 is linked to infection.