The Expression of IL-6, TNF-α, and MCP-1 in Respiratory Viral Infection in Acute Exacerbations of Chronic Obstructive Pulmonary Disease

Figure 2

Monthly distribution of viruses detected by multiplex PCR and RT-PCR in AECOPD. FluA: influenza A, MPV: human metapneumovirus, HRV: human rhinovirus, EV: enterovirus, PIV3: parainfluenza type 3 virus, CoV: coronavirus.