We examined the kinetics of BrdU+ monocyte subsets (CD14+CD16− and CD14+CD16+) entering and exiting blood at four time points: pre-infection (9 days before infection), peak infection (7 days post infection), 26 days post infection, and either 88 days post infection (slow progressors) or 24hrs prior to necropsy (rapid progressors) (Figure 4A–B and 4C–D). This evidence concerns the gene CD14 and infection.