A comparison between an eight day long in vitro infection of human PBMCs with EBOV (Mayinga strain) and BDBV, which is associated with lower mortality rate, established higher IL-10 levels in the supernatants of EBOV infected cells up to day 5 post-infection with a peak on day 2, while the IL-10 concentration became higher in BDBV supernatants on days 6 and 8 post infection [13]. This evidence concerns the gene IL10 and infection.