The belt and suspenders approach:
In 1990, James Reason helped develop the ‘Swiss Cheese Model’ for hazard prevention. In essence, every safety measure has a hole in it, like Swiss Cheese. To solidify the layers, we must stack many safety measures, i.e. pieces of Swiss Cheese, together to statistically prevent the hazard.
This same approach has been applied to the coronavirus.
Masks & barriers, social distancing, disinfection, and handwashing each play a role in preventing the spread of the coronavirus (as well as other viruses). No one method by itself prevents the spread, but when used together they are very effective.
The handwashing secret:
- You know when someone wears a mask.
- When people are too close.
- A disinfected surface has a certain smell and feel.
But what about handwashing?
How do you know someone washed properly?
How long did you to wash last time?
