LAMP1 and infection: This phenomenon was not strain-specific and was also observed with 10403S, the other widely used L. monocytogenes model strain [32], as well as with a listeriosis outbreak strain (CLIP63713, responsible for materno-fetal infections [34]) (S1C Fig): at 72h p.i in JEG3 cells, we quantified 80±5% of 10403S and 92±6% of CLIP63713 bacteria in LAMP1+ compartments.