Penicillin changed everything. Infections that had previously killed were suddenly quickly curable. Yet as Maryn McKenna shares in this sobering talk, we've squandered the advantages afforded us by that and later antibiotics. Drug-resistant bacteria mean we're entering a post-antibiotic world — and it won't be pretty. There are, however, things we can do ... if we start right now.

Why you should listen

Maryn McKenna’s harrowing stories of hunting down anthrax with the CDC and her chronicle of antibiotic-resistant staph infections in Superbug earned her the nickname “scary disease girl” among her colleagues.

But her investigations into public health don’t stop there: she blogs and writes on the history of epidemics and the public health challenges posed by factory farming. For her forthcoming book, McKenna is researching the symbiotic history of food production and antibiotics, and how their use impacts our lives, societies and the potential for illness.