"Since its invasion of Ukraine, Russia has claimed Kyiv is developing biological weapons with support from the US and Germany. Experts familiar with laboratories in Ukraine say the accusations are groundless.Is Kyiv developing biological weapons in secret laboratories with US support, or is this claim simply a pretext for Russia's war in Ukraine? In late April, Russian President Vladimir Putin cited a "network of Western bioweapons labs" in Ukraine as one of the threats facing Moscow and one it wanted to fight through its invasion of the country."
https://www.msn.com/en-us/news/world/are-russia-s-claims-of-ukrainian-biological-weapons-a-propaganda-ploy/ar-AAWSAHQ
Russia Accuses Pentagon, US Companies of Being Involved in Ukraine Military Biolabs
https://www.india.com/news/world/russia-accuses-pentagon-us-companies-of-being-involved-in-ukraine-military-biolabs-5372474/