-Animals can hold and spread the virus, so even after vaccinations of humans it was going to be in the background
-not every country was trying for zero Covid, therefore at some point in the future if you ever hope to have an open border with a country that has open borders with that country, you get it eventually.
-R0 was quite high
-Animals can hold and spread the virus, so even after vaccinations of humans it was going to be in the background
-not every country was trying for zero Covid, therefore at some point in the future if you ever hope to have an open border with a country that has open borders with that country, you get it eventually.
-there are no 100% secure borders