There are all sorts of rumors that the US has biological weapons installations in Ukraine and Putin has been targeting them for destruction. I have found no truth to this from reliable information. It would also be totally illogical to attack such facilities for that would unleash any such biological weapons that would then also attack Russian troops and carry it home to Russia. You cannot blow up a biological weapons lab. That would unleash who knows what and it could even kill Fauci because he could say – “What lab?”
If he can capture them before they destroy samples, then he would have a political feather for his hat. But there is no indication that he is targeting them with missile attacks.