At presentation, individuals who developed pulmonary haemorrhage had greater renal impairment, a higher C-reactive protein and were more likely to have an abnormal troponin than individuals without lung involvement; 24/25 (96%) individuals with pulmonary haemorrhage who had PCR testing of blood were PCR positive and 7/15 (50%) who had blood cultures collected had a positive culture. Here, CRP is linked to Pulmonary hemorrhage.