COVID-19: Corona Virus Disease 2019, SARS: Acute Respiratory Syndrome, MERS: Middle East Respiratory Syndrome, CRP: C-reactive protein, COPD: Chronic obstructive pulmonary disease, CT: Computed Tomography, RT-PCR: Real-time polymerase chain reaction, AST: Aspartate aminotransferase, ALT: Alanine aminotransferase, ALP: Alkaline Phosphatase, LDH: Lactate dehydrogenase, CPK: Creatine phosphokinase, Tab: Tablet, Cap: Capsule. Here, PIK3C2A is linked to chronic obstructive pulmonary disease.