Both R7 and IL-6 are upregulated after Aspergillus flavus infection of human corneal epithelial cells and after infection of control or thermally wounded skin equivalents with methicillin-resistant S. aureus, but it was not studied, whether the upregulation of IL-6 was triggered by increased R7 levels or both were induced by the same triggering factors71,72. Here, IL6 is linked to infection.