User blog comment:Charon12/Still Thinking/@comment-957629-20110818170207

I don't know why you are continually bringing this up on so many different pages, our sources are referenced and virus is the only thing mentioned as the cause!! Aizen's Hogyoku was never spoken about until late in the Arrancar Arc and never in reference to the Visoreds and considering the Visoreds were caused by the actions of Tosen and not Aizen directly, a virus seems more likely considering they had to be stabbed/injured first!!