(2020) revealed that Bifidobacteria from the gut microbiota can colonise tumours and stimulate STING signals, which can greatly improve the efficacy of anti‐CD47 immunotherapy, reminiscent of STING activation in host cells by OMVs secreted by the gut microbiota for antiviral infection in Erttmann's study (Erttmann et al. This evidence concerns the gene CD47 and neoplasm.