ELI5: Explain Like I'm 5

Aerosol transmission

Aerosol transmission is when tiny invisible droplets that come out when we talk, breathe, and sneeze can carry germs and viruses in the air, and pass them to other people if they breathe those droplets in. Think of it like blowing bubbles with a bubble wand - the bubbles are the tiny droplets, and they can float in the air and pop on other people. That's why we wear masks and stay apart from each other, so we don't make too many bubbles that might spread germs.