I ve had positive Rubella IgG tests as far back as 2001 and as recently as November 2015 (IgG 2.95). With no symptoms on May 22, 2017, I tested positive for Rubella IgM (47.7). Retest on May 30th positive for Rubella IgM (46.6) and IgG (2.2). EIA retest on June 7th positive for IgM (46.7), negative for EBV, CMV, and RF.