Tiamat
I've seen the future...
Not sure if it goes here or the bio labs one, but it seems the labs were known of, and the WHO ordered Ukraine to destroy all samples to prevent any outbreaks from the invasion.
EXCLUSIVE WHO says it advised Ukraine to destroy pathogens in health labs to prevent disease spread
The World Health Organization advised Ukraine to destroy high-threat pathogens housed in the country's public health laboratories to prevent "any potential spills" that would spread disease among the population, the agency told Reuters.www.reuters.com
The labs are openly known, they date back to the Soviet era apparently. U.S. State Dept, specifically the Defense Threat Reduction Agency was involved in getting the facilities modernized. That plus the advisement to destroy the pathogens makes sense. Battlefield chaos coupled with munitions hitting the wrong targets can lead to some potential Wuhan-levels of "woops".