I have no idea of course, but if it were so easily transmitted, then I would think many millions more would be sick. ??? d. p.s. Think I may have just found Cheney's explanation: "Over time, the infections of various organs tended to be cleared by either immune mechanisms but especially by restriction enzyme systems present in almost all human cells that hypermutate the virus so it cannot persist as a competent infectious agent. Indeed, mutated viral strains are almost always found in CFS cases by both Judy Mikovits at WPI and Frank Ruscetti at NCI. Sometimes this makes the virus incompetent as an infectious agent and sometimes has no effect on infectiousness."