OXT and viral infectious disease: Previous publications on oxytocin properties revealed: the interactions between nervous and immune system [199]; the fact that human vascular endothelial cells express oxytocin receptors [171]; the fact that when used in experimental LPS-induced acute lung injury in mice, oxytocin had a protective effect [170]; and the evidence that viral infections in humans (including influenza) attenuate oxy receptor expression, indicative of a key role of oxy system in human health [172].