Heck yes! The plant doesn't even have to have leaves on it for you to get it if you're allergic to it, so you can even get it in the dead of winter. All it takes is getting some of the sap on you. You can even get it from touching the the roots or from the smoke if you're burning it.
This poor lady that worked with me broke out in the most awful rash one day and it turned out that she was pulling some roots the day before that were sticking up out of the ground by her swing, never dreaming that they were poison ivy roots. She apparently then rubbed her face and eyes. It was not a pretty sight.
Pinging my brother. He got into some camping, and I think they burned some in the campfire, he swelled up so bad he couldn't see. Bad thing was, they were on an island, and he was the one who knew how to get home in the boat ;~D "OK - do you see water and pieces of land with trees on it? head towards ummm... well... sortof south."