In late October, after eight months of war, the Russian government claimed that Ukraine was preparing to use a "dirty bomb" and blame it on Russia. There was never any evidence for this claim. But Russia's ambassador to the UN, Vassily Nbenzia, nevertheless sent a letter (reproduced below) demanding that the Security Council hold a meeting to discuss the "dirty bomb" issue.
1-EVIDENCE OF US-FINANCED BIOLOGICAL PROGRAM IN UKRAINE REVEALED BY RUSSIAN DEFENSE MINISTRYTass, March 06, 2022https://tass.com/defense/1417951,2-UKRAINE WORKED ON DEVELOPMENT OF BIOLOGICAL WEAPONS NEAR RUSSIAN BORDERS – STATEMENTTASS, March 08, 2022
1-Information on the production of dangerous viruses and bacteria in a Georgian laboratory under the auspices of the United States needs international verification - Igor Giorgadzehttps://www.interfax.ru/presscenter/628867/ (September 11, 2018)
China, ostensibly neutral on Vladimir Putin's invasion of Ukraine, took a significant step into Moscow's camp on Tuesday when a government official repeated a Russian conspiracy theory about the existence of U.S.-funded biological weapons in the country.
After accusing the U.S. of producing bioweapons in Ukraine, the Russian Ministry of Defense has added another feather-ruffling theory to their accusation: That the U.S. is training birds in Ukraine to spread deadly diseases among Russian citizens.