Figure 4From: Inflammatory thresholds and the species-specific effects of colonising bacteria in stable chronic obstructive pulmonary diseaseThe species-specific effect of potentially pathogenic microorganisms (PPMs) on (A) CXCL8, (B) IL-1β, and (C) MPO. LABC = lower airway bacterial colonisation; HI = Haemophilus influenzae; SP = Streptococcus pneumoniae; MC = Moraxella catarrhalis; mixed = mixed potentially pathogenic microorganisms.Back to article page