Moreover, infection with HN878 induced a mean MFI for PD-L1 on lung regulatory neutrophils that was 3.8 times lower than that for those of H37Rv-infected animals (Fig 4H) despite a similar frequency of PD-L1 expression among MHC-IIpos neutrophils between the two strains (Fig 4I). Here, HLA-C is linked to infection.