> Do not go to places where you are more than 20 people in the same room. It's not safe and it's not worth it.
Why 20? Is this simply about reducing exposure to potential carriers?
Why 20? Is this simply about reducing exposure to potential carriers?
If the virus has spread to 0.1% of the population (330k cases), an auditorium with 693 people in it has a 50% chance of having at least one infected person in it.
If the virus has spread to 1% of the population (3.3M cases), a cafeteria with 69 people in it has a 50% chance of having an infected person.
If the virus has spread to 10% of the population (33M cases), a house or office with 7 people in it has a 50% chance of having an infected person.
If the virus has spread to 50% of the population (165M cases), a fortified secret bunker with 1 person in it has a 50% chance of having an infected person.
But if that bunker dweller hunkered down back when the spread was only at 0.01%, not only would they have less chance of being infected themselves, they would also not be potentially spreading it to others. So it pays to start limiting contacts earlier.