ELI5: Explain Like I'm 5

Source control (respiratory disease)

Okay kiddo, so have you ever heard of the term 'source control'? No? Alright, let me explain.

Source control is a way to prevent germs, like viruses and bacteria, from spreading to others. Germs can be spread by coughing, sneezing, talking or even breathing. So, when someone has a respiratory disease like a cold, flu, or COVID-19, it is important to control the spread of their germs.

One way to do this is by wearing a mask that covers your nose and mouth. This mask can catch any germs that you may breathe out or cough out, so that they don't spread to others. This is source control, because it stops the source (the person with the respiratory disease) from spreading germs to other people.

Another way to practice source control is by covering your mouth and nose when you cough or sneeze. This can be done with a tissue, or by coughing or sneezing into your elbow. This stops germs from being spread into the air, where others can breathe them in.

Ultimately, source control is all about stopping the spread of germs by controlling the source. By wearing a mask and covering your cough and sneeze, you can help keep others safe and healthy.