That is very unlikely to happen, if only because vaccines do not have anywhere close to 100% success rate and many people won't be vaccinated due to health reas

That is very unlikely to happen, if only because vaccines do not have anywhere close to 100% success rate and many people won't be vaccinated due to health reasons alone. Plus there will be animal reservoirs. Nothing has this kind of success rates. Vaccine, if effective, reduces risk of vulnerable groups and transmission from their caretakers. Exactly like flu vaccination. Heck, we have failed to eradicate polio in all countries, a level 1 virus much easier to control. I predict zero chance we can eradicate a level 2 virus right now.