IL17A and Alzheimer disease: Skin microbiome sequencing revealed a shift toward pathogenic staphylococci, which has been reported in AD patients.30 While the microbiota in flaky tail mice induced IL‐17A‐mediated neutrophilia, we could show that in Flgft/ft mice IL‐17A was redundant.33 Indeed, IL‐17A‐mediated inflammation is observed in Tmem79ft/ft (Saunders et al, unpublished) but not in Flgft/ft mice.