Because of the deceitful way in which Gideon is responding to my post I feel I should repeat the key points.
1. Yes, everyone knows that things like Polio and Smallpox were eradicated with a vaccine.
2. Those vaccines took 50+ years to develop and during that time there were several failed attempts.
3. Those failed attempts were referred to as "safe and effective" before they were proven to not be either.
4. Never in human history has a pandemic, a deadly contagion that is prevalent over the whole world or the whole continent at that time died out due to a vaccine.
This is not because we lacked the technology or will or resources. The reason is simple. If you have a disease like Covid19 that mutates rapidly and where the world averages 1.5 million contagious people at any one time in every continent and pretty much every country worldwide. By the time you have created a vaccine that is "safe and effective" and then administered it to the 2-3 billion people necessary to begin to have an impact the disease would have mutated into many variants. It is a fool's errand.
However, if you practice social distancing (not mask wearing -- which primarily means that if you have symptoms of the flu you stay home) then the virus will naturally mutate to less virulent strains that are not deadly. Catching variants whether it is Covid19 or the Omicron variant is how the vast majority of the population develops immunity.
and that is the 5th point
5. Every pandemic in human history has died out this way, by mutating to less virulent strains.
For the ignorant and those who struggle with the english language -- a pandemic dying out is like a forest fire that stops spreading. Inside the forest fire there are still many pockets of fire still burning and those can be put out by firemen with hoses.
Yes, point 1 -- these viruses were "eradicated" with the vaccine but the pandemic, the worldwide forest fire, died out when people developed natural immunity, often because they were exposed to small viral load, or they had an immune system particularly disposed to fighting off this virus or the virus mutated to a less virulent strain.