Medically reviewed by Anju Goel, MD Key Takeaways Diarrhea is often contagious, especially when it's caused by viruses, ...

From common colds to fever, diarrhea, or sore throat, little ones get sick often. There is a reason for this: kids’ immune systems don’t fully mature until they reach ages seven or eight, so they’re ...

Medically reviewed by Robert Burakoff, MD Key Takeaways Diarrhea is often caused by infections, including bacterial, viral, ...