Prophylactic treatment with a combination of two mAbs, named 4G3 and 5G4, that recognize different epitopes on staphylococcal enterotoxin K (SEK) significantly enhanced the survival of mice in a model of SEK-induced lethal shock and sepsis by a virulent staphylococcal strain [98] (Table 1). The gene discussed is EPHA4; the disease is Sepsis.