163K views · 583 reactions | One out of 50 Covid-19 tests in the U.S. is processed at the University of Illinois at Urbana-Champaign. Here's how its researchers are tracking the spread of coronavirus on its campus, and how it's become a model of testing for other flagship universities: | NOVA l PBS | Facebook

71 reactions · 11 shares |  Why is saliva important for your smile? Saliva protects your teeth, aids digestion, and keeps your mouth comfortable 醴 If you experience dry mouth, it may be from dehydration or other causes. Staying hydrated can help a lot ✅  Have you ever experienced dry mouth? Tell us in the comments! #DryMouth #HolisticDentistry #BiologicalDentistry | Natural and Cosmetic Dentistry | Facebook