A similar phenomenon was observed in 3D4/21 cells 9 h after infection with the AH strain, i.e., the colocalization of Mhp366 and LC3 was observed (Figure 2B); in addition, the number of LC3 fluorescent dots in the infected group, similar to autophagic stimuli by starvation (EBSS group), was much higher than that in the uninfected group (p ≤ 0.01) (Figure 2C). Here, MAP1LC3A is linked to infection.