Without a first line of defense--innate immunity--mammals would succumb to pathogens still unrecognized by B and T cells.
What we showed in human immune cells in vitro petri dish-type alcohol administration is that alcohol indeed affects inflammation and in turn innate immunity related to bacterial and viral infections.
GM-SCF boosts innate immunity to make it immediately effective against the virus, and its protective effect has not been shown to be strain dependant so far.