Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Misleading re: CFS/ME

The authors here confuse "chronic fatigue," which is a symptom of many different diseases, including depression, with a serious physical illness called "Chronic Fatigue Syndrome/Myalgic Encephalomyelitis" (CFS/ME). This is a very serious illness which ruins the lives of millions of men, women and children. In Oct 2009, an article was published in the journal SCIENCE which found a retrovirus, XMRV, in most of their sample of CFS/ME sufferers. Hopefully, the results of this study and other research studies will show the error of this type of confusion among doctors and researchers so that the focus will be on finding a cure for this dangerous illness rather than trivializing the sufferers.