Keyword:	            Demand:	Supply:	                                Supply-Demand
computer virus cure	    232	       124,000	                                  123768
get rid of a computer virus 630        139,000	                                  138370
removing computer virus	    124	       177,000	                                  176876
computer virus removal	    272	       313,000	                                  312728
fix a computer virus	    266	       355,000	                                  354734
computer virus repair	    147	       360,000                                    359853
free computer virus removal 53         425,000	                                  424947
how computer viruses work   222        679,000	                                  678778
computer virus article	    217	       973,000	                                  972783
free computer virus protection	328    1,440,000	                          1439672
computer virus protection	971    1,550,000	                          1549029
computer virus info	        162    1,760,000	                          1759838
computer virus help	        272    2,570,000	                          2569728
computer virus	                38067  3,700,000               	                  3661933