SARS-CoV-2, the virus that causes COVID-19, spreads primarily through respiratory droplets emitted by infected people when they cough, sneeze, talk loud, laugh, sing or simply exhale; you can breathe in the droplets.
According to the CDC, COVID-19 is primarily spread from person to person. It can also be spread by touching a surface or object that has the virus on it, and then by touching your mouth, nose, or eyes.
Think of it like this: You and 10 friends spend Mardi Gras Day together. One of you is decorated with glitter. How many of you wake up on Ash Wednesday with glitter clinging to you?
Let’s look at the math:
What we know is that a person with COVID-19, whether they have symptoms or not, can infect, on average, 2-3 people. Given an average incubation period of 5 days, a single unchecked case can lead, over 2 months, to more than 20,000 infections and 100 deaths.