My ME CFS Doc told me I was TH-2 Dominant and my TH-1 was completely dormant after seeing all my tests for EBV,CMV, C. Pneumoninae etc etc after I tested positive for XMRV in 2010. As a kid I had 65 allergies and severe asthma since 3 months old! I took allergy shots for nine years that were made up of all my alllergans. Long Story short, many ME CFS patients have a strong historty of allergies and asthma which makes you Th-2 weighted. They also found I have a partial empty sella which I think was from a viral exposure. Of course what I think does not make for real science. Valcyte for 14 months helped but I haven't had a cold in nine years. Hope to start GcMAF in June as my Nagalase levels were 1.90. This is just take on the Th-1-Th-2 shift. I think I was Th-2 weighted to begin with and something took me to the dark side. I pray for balance of my Th-1 & Th-2 immune system ......that is why I use the Mayan Huna B Q symbol for my avatar, it is the Mayan Ying Yang symbol for our Universe. Securing Balance is the crux of maintaining symptoms with ME CFS. The thing about Green Tea is a bummer. There are supplements out there that help re-boot your TH-1 like Regenesis Pro 500 and DL Pheine which I use. I guess the Mantra for ME CFS research might be.....it's the immune system stupid! Interesting thread. I think the validation of actual tests for chronic sub infections like EBV, CMV HHV and C. Pnuemonae are more important because it shows thay your TH-1 system can not fight them off proving that you are a TH-2 Dominatrix! HA HA not funny!