SLAMF1 and infection: To better define the kinetics and the types of progenitors that were responding to the infection, we analyzed the bone marrow MPC compartment and observed that the number and proportion of granulocyte-monocyte progenitors (GMPs; CD16/CD32+cKit+CD41-CD150-Lin-) remained stable over time (Fig 2A and 2B, S2 Fig).