“Bio-weapons labs are all BSL-4 labs. There are NO BSL-4 labs in Ukraine.”
Not quite true. The Soviet-era labs were certainly not up to that standard at the end of the Cold War, and some of them were very likely handling weaponized or weaponizable agents. We did work with Ukraine to upgrade those labs to modern standards BUT Ukraine did not grant Westerners access to all of their labs. So we cannot say with any certainty that there aren’t still some Soviet-era labs that are unupgraded and may still contain some biological agents, since we didn’t inspect all of them.
Not quite true. The Soviet-era labs were certainly not up to that standard at the end of the Cold War,
There are NO BSL-4 labs in Ukraine. Period.
Known as biosafety level 4 (BSL4) labs, these are designed and built so that researchers can safely work with the most dangerous pathogens on the planet – ones that can cause serious disease and for which no treatment or vaccines exist. Researchers are required to wear full-body pressurised suits with independent oxygen.
https://theconversation.com/fifty-nine-labs-around-world-handle-the-deadliest-pathogens-only-a-quarter-score-high-on-safety-161777