Sara Leschner observed a dramatic increase in tumor necrosis factor‐α (TNF‐α) in blood after the intravenous injection of Salmonella enterica serovar typhimurium in an ectopic transplantable tumor model, inducing the disruption of vessels in tumors.[11] As a result, bacteria were flushed into the tumor with the influx of blood and were trapped inside ever since. Here, TNF is linked to neoplasm.