there is not information that's exactly the same bacteria and that drugs work. It might be novel one or modified in the lab. Even for flu we don't have general vaccine that works.

Yes, the fact that is the plague is less worrying than it is plague from a bio research lab that escaped. The only unfounded, non verified news i have read is that it can from collecting of samples, not post experimenting. But your guess is as good as mine at this point

And there might be a teapot on the other side of the sun.

It’s bacteria, antibiotics work more generally than vaccines for viruses do.

There are of course, antibiotic resistant bacteria but we still have some exotic antibiotics in our arsenal.

If anything for a widespread bacterial plague I’d be more concerned about our ability to produce enough antibiotics rather than _if_ we could develop a cure