I'm a biologystudent at a Swedish university. early last month we were supposed to extract hemoglobin (The oxygen-carrying protein in red bloodcells). It was all fun an interesting, though a while after I restarted Oblivion after a few months of not having played it. When one of those infoboxes in loadscreens came up I noticed that vampirism is known as Porphyric Hemophilia. I had read the name of it before and knew about hemoglobin and what it does long before starting uni, but it had never crossed my mind before that hemophilia is loosely translated to "Bloodlover".
Just felt like charing this little story with you. I thought it was fun to notice that they put effort into the name.
Another useless fact: According to Wikipedia the sixual attraction to blood is sometimes known as vampirism.