We found that compared with the two MARV non-responders, under mock infection conditions, the three responder donors displayed significantly upregulated expression of a number of HLA genes, as well as TLR2, suggestive of potential baseline differences in the ability of moMΦs from different individuals to recognize and present foreign antigen and hence to induce downstream antiviral immune responses (Table S1). Here, TLR2 is linked to infection.