For example, MeMed BV® [74] is an innovative immune-based protein signature test that measures and computationally integrates the levels of three host-proteins (TRAIL, IP-10 and CRP) to deliver fast results indicating the likelihood of a bacterial or viral infection in less than an hour, in order to optimize the use of antibiotics in cases of suspected infectious disease. The gene discussed is CXCL10; the disease is viral infectious disease.