While there is no control group, they looked at long term outcomes over 100 months. This is illustrated in table 1, showing the disease free survival time. The antiviral/immunoglobulin group does significantly better than the other groups, but seems to be small if I'm reading the tables right. I'm wondering if the group is small because few people respond (with the ones responding doing best in the long term) or if it's because few people are given antivirals/immunoglobulin? By the way, one of the authors is my current CFS doctor. I have my second appointment in April. From what I've seen, doctors in this clinic do not waste time on psychobabble.