In contrast to the increased IFNγ within Sts−/− cultures following infection at either MOI, no differences in the levels of pro‐inflammatory cytokines tumor necrosis factor‐α (TNF‐α) or interleukin 6 (IL‐6) were observed between wild type and Sts−/− cultures (Figure 1B,C). This evidence concerns the gene IL6 and infection.