I had ONE sore during my pregnancy. The MD tested it and it came up positive. This was in 1983. I was furious! My ex was a real peice of work, and I knew it came from his less than careful excursions. I thought for sure I would be troubled with it from that day foreward. I have never seen another sign of it. Even after being on Copaxone. never had a flare. I do occasionally get a fever blister, but they are rare too. I used to get cancer sores as a kid all the time. Dont get them anymore. so, I guess I too am positive, but have no sx.