yep, you sure can. I had it at age 7, my son had it at 2yrs, then again at 3yrs, and I also caught it again from him(at 33!) Seems we both had a really mild case the first time with only a couple dozen or so of pox. It didn't give us enough immunity and we both caught it again. The second case should keep us both safe forever. It was a doozy!