Obviously you are not a virologist. As you would be aware that it's a gram negative, rod-shaped bacillus and not a virus.Yeah...in the first post?
Centre for Disease Control gadgy HERE
Is a vaccine available to prevent plague?
A plague vaccine is not available. New plague vaccines are in development but are not expected to be commercially available in the immediate future.'
I'm not a virologist...if you are, the CDC is plainly in need of your services?
Here's the info I aluded to above. It's on the CDC site.