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. 2022 Jan 7;12:797789. doi: 10.3389/fmicb.2021.797789

FIGURE 2.

FIGURE 2

Extrinsic apoptosis and necroptosis pathways during IAV infection. IAV infection can lead to upregulation of the death receptor ligands TNFα and FasL and the pattern recognition receptors TLR3/4 as well as downregulation of cFLIP.