It looks like TruBlood is almost a reality, vampires everywhere rejoice. The Hemoglobin-based oxygen carrier (HBOC-201) is basically artificial blood. It is used to deliver oxygen to your vital organs. The best part is that it can be stored for years and doesn't care what blood type you are.
This artificial blood has been doing well in clinical trials and recently saved the life of a woman who couldn't have a blood transfusion because of her religion.