World Health Organization

When Caoily was 10 months old, she came down with rotavirus. If you have children, and you've been through this, then you know how awful this common infection is. Everything you put into your child--in my case, breastmilk and some solids--comes out in a very short time as a watery, noxious, seemingly neverending river of shit that overflows diapers. I would breastfeed her, and she would be shitting simultaneously, covering both of us in it as I tried to get fluids into her to keep her from dehydrating.
Our pediatrician hospitalized her after 12 hours. For three days, she stayed on a simple solution of electrolytes and fluid through an IV in her leg, the only vein the anesthesiologist (I had insisted on an anesthesiologist) could find to puncture.
She was one of the lucky ones.