cGAS‐STING signalling consists of the synthase for the second messenger cyclic GMP‐AMP (cGAS) and the cyclic GMP‐AMP receptor stimulator of interferon genes (STING), which catches abnormal DNAs (dsDNAs, microbial DNAs, cytosolic DNAs, released mitochondrial DNAs, etc.)to activate an innate immune response against viral infections.13, 14. The gene discussed is STING1; the disease is viral infectious disease.