This needs confirmation but I have tested it for 3 weeks now in both 25 and 10man, can just be me that is lucky but I really doubt it, and I will explain why.
What this thread is about;
Avoid the plague on you on Putricide - it can be for many reasons but biggest is really that Plague is easily bounced around by healers so say your a tank healer or a DPS, you might not want this - you want big numbers on your screen instead
How to:
It's really simple. Go buy [Iron Boot Flask] and when you are about to pull, flask up. Not only do you get a dumb looking transformation, but you can't be targeted by the Plague.
Really?:
So far I have tested it for 3 weeks on my own character in a total of 5 instances (I skipped ICC10 one week) and I have found that I never get targeted.
I also found out that if you have the transformation on, you are not capable of taking the plague from other players, which is why I come to believe I wasn't just being lucky.
Please test it out and come back with experience - I will keep testing it.
/rot