English Q&A 8 9

8. what are the two major difficulties of finding a cure of cold? First, the "common" cold itself is not a single disease and some cold viruses have the ability to change their appearances. So we should develop hundreds of vaccines and change our immune frequently. 9. what is cocktail therapy for colds and what is its limitation? To find a cure for colds, we must weaken our immune system's respond of the anti- inflammetory and get rid of the symtoms, while still allowing the body to fight. Interferon is too expensive to buy in over-the-couters.