C-reactive protein (CRP), hepatic/renal function profiles, cardiac enzymes, electrolyte levels, coagulation parameters, tumor markers, tuberculosis antibodies, and respiratory pathogen panels (M pneumoniae, Chlamydia spp., L pneumophila, C burnetii, adenovirus, respiratory syncytial virus, influenza A/B, parainfluenza virus) were all within normal limits. Here, CRP is linked to neoplasm.