Yemen is in the midst of an unprecedented cholera outbreak. But what makes Vibrio cholerae so efficient, giving it the ability to "set up" infection in hundreds of thousands of people in one area? Here's what we know.
Yemen's cholera outbreak is hitting epic proportions, with over 100,000 cases currently reported. And with more than 14 million people lacking access to clean water and sanitation, the beleaguered country is at the beginning of what some are predicting to be a complete collapse.