And that can lead to many problems as we'll see in just a moment. So what exactly is this bacterial pathogenic agent? Well, we call it Vibriocolarae, which is basically that agent that causes cholera in humans. So Vibrio simply means it's a raw shape gram negative bacterial cell. In fact, the raw shape is actually curved and so it looks like a comma. Now gram shape, gram negative basically means it contains a very thin layer of peptidoglycan in a cell envelope.