YEP!
I've got it right now! I had a REALLY bad case of it earlier this year and I went to the Dr., I got a "Decadron" (sp?) steroid shot and since then I still get it, buts it's not nearly as bad. I get that stuff SEVERAL times a year. Almost once a month; everytime I weedeat my yard, even if I'm covered up completely.

It's my understanding that Poison Ivy, Oak, and Sumac all have the same "poison". It's an oil and it basically causes a chemical burn. Some people are more sensitive to it than others. When I was a kid, I NEVER got it untilI was 17 on a Scout trip to Vicksburg, Mississippi. Just wait til you get it in your lungs. Be careful burning the stuff, cause that smoke will darn near kill ya.