THE INVENTION IS DIRECTED TO GINSENG FRACTIONS AND METHODS FOR ACTIVATING INNATE AND ADAPTIVE IMMUNE RESPONSES TO PREVENT, TREAT OR AMELIORATE A CONDITION IN A SUBJECT BY ADMINISTERING TO THE SUBJECT AN EFFECTIVE AMOUNT OF A GINSENG TRACTION, A PHARMACEUTICAL COMPOSITION COMPRISING THE FRACTION IN COMBINATION WITH ANOTHER MEDICAMENT OR WITH ONE OR MORE PHARMACEUTICALLY ACCEPTABLE CARRIERS, OR A FOOD ITEM COMPRISING THE FRACTION. THE FRACTION MAY BE MADE FROM PANAX QUINQUEFOLIUS’OR MAY BE SELECTED FROM CVT- E002, PQ2, PQ223 AND PURIFIED FRACTIONS FROM CVT-E002, PQ2 AND PQ223.