Figure 4
Decreased IL-1RA/IL-1β ratio in the nasal mucosa of participants who failed to clear nasal Staphylococcus aureus (SA). The IL-1RA/IL-1β ratio was calculated for each nasal fluid that was collected on the indicated days during the nasal inoculation studies. *Differences between the clearance (red circles) and carriage (green circles) groups, with P values displayed in the graph. Error bars indicate mean±s.e.m. IL-1β, interleukin-1β; IL-1RA, interleukin-1 receptor antagonist.
