S. haemolyticus and S. aureus induced human PBMCs to produce different cytokines at different relative levels after 6 and 24 hof infection.We observed a marked early inflammatory response, which is consistent with other reports that described a similar production of high levels of inflammatory mediators (IL1β, IL6, and TNFα) after S. aureus peritoneal infection [62]. This evidence concerns the gene IL6 and infection.