Duke University researchers wanted to test how easily germs can spread even during normal conversations. They used a box, laser, lens, and cell phone camera to visualize droplets and filmed people speaking into the box.Martin Fischer, PhD, is with the Departments of Chemistry and Physics at Duke University.
He says, “It’s astounding how much stuff comes out of you when you just speak, you didn’t even have to sneeze or cough. It’s the speaking itself that already generates lots of droplets.”According to Dr.
Eric Westman in the Department of Medicine at Duke University, “You may not know that you’re spreading the disease, you won’t see it.”Dr.