Scientists have discovered a shocking new trait in some of the world's most common – and dangerous – bacteria. Turns out, bacteria like Salmonella and E. coli have a taste for human blood, and they'll hunt it down like vampires. Bacterial vampirism Researchers at Washington State University have given this newly observed behavior the term "bacterial vampirism." This term illuminates how certain bacteria have an unusual ability to migrate from the gut, where they cause illnesses like food poisoning, into the bloodstream where they pose a much...