Diarrhea isn't something we usually discuss in public. But as thesecond leading cause of death for children younger than 5, it's a topic global health advocates want more people to talk openly about.

A parent or caregiver needs to seek medical attention if the toddler’s diarrhea lasts more than 24 hours, is accompanied by a fever of 102°F (38°C) or higher, or there are signs of dehydration. While ...