and additional support from scott nathan and laura debonis. >> my name is brittany smith, and i'm nine years old. it's tough because my mom and dad are poor. my dad just lost his job. it's kind of hard for us. monday i tried getting in the shower, and it was cold. i put the hot on all the way and no cold, and it was freezing. it felt like shoving your face in a bunch of snow. it was freezing! the hot water shut off because we didn't pay the bill in time. it was overdue. >> so what's the next bill due? >> electricity. it's going to be $318. we just need to put roger's ass to work. >> yeah. >> when you see the flat-screen tv and the computers and our ps3 and stuff, that's just things we've acquired over the years, stuff that we've had before all this happened, like when we were not this poor. >> sink's broke. i don't know how or why, but it broke. and the cheapest plumber is, like, $65 an hour. i can't even afford $20. >> we lived in a farmhouse. my dad lost his job from picture perfect. he got laid off, and we got kicked out of there. we moved

and additional support from scott nathan and laura debonis. major funding for this program is provided by the kendeda fund. >> narrator: this is the story of three seemingly disconnected events beginning at the same time. what they each have in common is a type of infection that is becoming impossible to treat... a type of infection that has triggered deadly outbreaks, even at one of our most prestigious hospitals. it is a crisis that is spreading alarmingly fast, threatening everyone, even the healthy. (siren blaring) our first story starts in tucson, arizona, in may 2011. >> when i think about that time, i think about spring... and just, you know, how busy it was and how beautiful she was. she was 11 and a half years old and just physically perfect, beautiful from head to toe, slim, you know, white-blond hair from being out in the sun. a little bit of freckles across her nose, bright blue eyes, paying attention to what her clothes looked like and her hair, never stopped talking, talked a mile a minute. that was addie, at that just, you know,