Long article on Biosafety Level 4 labs. Potentially this is the stuff of *12 Monkeys*
https://multimedia.scmp.com/infograp...ies/index.html
The 47-year-old heads the Biosafety Level 4 laboratory at the Robert Koch Institute in Berlin, Germany, the type of lab that handles viruses capable of sickening or killing humans in their millions. It is the front line in the world of virology, where men and women in astronaut-like suits explore a microscopic space to deconstruct the genetic code of deadly viruses. The goal is to mount counter-attacks using tailor-built vaccines and antiviral drugs.
If “know your enemy” is the maxim to survive conflict, taking on a potentially fatal virus as an adversary, like those that cause Ebola, Aids or Covid-19, throws up especially difficult challenges. This invisible enemy is immune to reason, mutates as it spreads, and multiplies in hosts it infects before launching attacks on more people. And viruses exist in uncountable billion