Nope we have some and so do the Russians, but that’s what has been admitted to. I think I read that you could dig up graves of those who died of Small Pox and eventually find viable virus particles then grow it. The Russians at one time had dispersed weaponized Small Pox to different armouries around the country. Who knows if they got all of it back into a single location. Russia is also a kleptocracy so who knows if some of it hasn’t been soldfir enough money and to which of their allies they gave the stuff to during the cold war.
Richard Preston’s book, Demon In The Freezer, tells the story of the USSR/Russia’s program for creating Blackpox.
It is a terrifying true story about bioweapon research.