Russia has accused Ukraine of working on biological weapons and the United States and Germany of providing support. These allegations are unfounded. There are no indications of such activities, which would be prohibited by the 1972 Biological Weapons Convention (BWC). Germany, the Russian Federation, Ukraine and the United States are BWC states parties. NATO and Western countries have voiced concerns that Russia may use these allegations as pretext to employ chemical weapons in the war against Ukraine.
Jakob, Una; Jeremias, Gunnar; Kelle, Alexander; Marauhn, Thilo; Meier, Oliver; Nixdorff, Kathryn; Trapp, Ralf; de Vries, Barry. “Russian Allegations of Biological Weapons Activities in Ukraine.” PRIF Blog, 22.3.2022.