Isn't this a "Mine is bigger than yours" dig at the panicky pandemic pumpkina**? He talked big and loud and often yet he does not have a vaccine.
Russia got there first. Or so it thinks. What will the panicky pandemicpumpkina** do to douible down retatliate revenge and get back at it? Oh wait. It's his puppetmaster. He'll congratulate and compliment and wax poetic about the brilliance and genius of the vlad.
It would appear they are not the first to develop a Covid-19 vaccine.
There about 5 others in test around the world, though the Russians might be pushing hard to be the first to put their in general use before fully testing it.
They have also been very quiet about their test data.