You should be able to find numerous sites online that detail the published studies and in my research they are all consistent in reporting these elevated risks. I'm sure if I researched many of the meds I've taken over the years as in depth as I have for remicade I would have found quite enough to make me think twice about taking them again. That said, remicade has enabled me to return to work almost full time from a point where I could barely make it through half the day. It is a big decision and there is no doubt these biologics are intimidating. The best advice I can give if you decide to try it is do all you can to minimize your risks, I even wore a mask at times to work during flu season....kind of extreme but gave me more peace of mind. I wish you the best with your decision.