I have had the IL2 treatment back in 2005. The treatment was given in the ICU at St.Johns Hospital in Saint Louis,Mo. I was in ICU for 5 days, then went home for one week and then back in ICU for 5 more days. I did this twice. But I'm happy to say that I'm feeling great. That was 6 years ago. I would be happy to answer any of your questions.