We don’t “find” vaccines. That’s the language yellow media uses, but it’s far from the truth.

We know the virus, and we know what it looks like. Now we need to produce a sufficient amount of attenuated virii. For that, we inject the virus into a foreign host, like a chicken embryo in an egg. Most viruses will die, because the host is so different from humans, that it can not work. Some will mutate to work, and those multiply.

That’s our virus. It’s sufficiently close to elicit an immune reaction that can also fight the “real” virus but sufficiently different, that it cannot harm.

Now we need to make LOTS of those.

And then we need to test the virus on volunteers. Not to see if it works, but to see if it harms the volunteer. This takes 14 months at the very least.

And then, if all goes well, we have a vaccine.