HIV sometimes has an acute retroviral response in people infected by it: "This strikes you as a flu-like sickness usually about 2 to 4 weeks following initial infection. The symptoms usually last 3 to 14 days and go away on their own, just like the flu. It is estimated 50% to 90% of persons infected will get this syndrome. The most common symptoms are fever (fever means 100?F or higher), sore throat, swollen glands in the neck, armpits and groin, muscle and joint pains, rash and/or night sweats. Less common symptoms include weight loss (10 to 15 pounds), diarrhea, nausea, headache, and, very rarely, yeast infections of the mouth (thrush). Respiratory things like runny nose, sinus infection, coughing, sneezing, etc. are not generally considered symptoms of this syndrome." Since XMRV is a retrovirus I wonder if there could be a similar response. Did anyone who is XMRV+ experience something like this?