In the case of polio, it means no cases have been detected in the last 12 months. This was actually achieved a fair bit later than I thought, the continent of America eradicated polio in 1988.
If true, then I didn't know what eradicated meant either. I thought it meant that it doesn't exist anywhere. Obviously, when something is eradicated only locally, it can re-emerge later on.
Do you know what 'eradicated' means?
In the case of polio, it means no cases have been detected in the last 12 months. This was actually achieved a fair bit later than I thought, the continent of America eradicated polio in 1988.
If true, then I didn't know what eradicated meant either. I thought it meant that it doesn't exist anywhere. Obviously, when something is eradicated only locally, it can re-emerge later on.
Then it's not an eradication.