IIRC, Dr Rey does a follow-up PCR test when there is a high Parvo B-19 IgG to determine whether the high titre is due to high leftover antibodies from a previous infection (no biggie) or an chronic infection (biggie). Might be worth asking for if KDM doesn't do it automatically. I had a chronic Parvo B-19 infection detected by PCR. I had an IgG of 6.82 [>0.9 neg, 0.9-1.1 equivocal], so your viral titre is much higher than mine. That doesn't necessarily mean that you have a chronic infection, of course, but does make it seem more likely. Equilibrant knocked the socks off my relatively mild Parvo B-19 infection within 3 months. I only had to take 1 pill, although the standard dose is 6 pills. It did a number on the Coxsackie virus, too.