A hallmark of age-associated chronic inflammation without an overt infection is the elevated levels of inflammatory biomarkers such as C-reactive proteins, interleukin-6 (IL-6), chemokines CCL2, CCL3, and CCL4 in blood (Chiu et al., 2006; Seidler et al., 2010; Franceschi & Campisi, 2014; Wang & Casolaro, 2014). The gene discussed is IL6; the disease is infection.