One aspect such movies almost always get wrong is ease of protection: With only modest countermeasures (face coverings, washing hands, ventilating rooms etc), y

One aspect such movies almost always get wrong is ease of protection: With only modest countermeasures (face coverings, washing hands, ventilating rooms etc), you can drastically cut down the rate of transmission. A scientist with advanced equipment and knowledge getting infected is extremely unlikely. In the real world it happens, but only to 0.x%, and only to hospital staff spending weeks with thousands of infected people, under often sub-optimal conditions. It's completely possible to go years without catching a cold if you're willing to devote maybe 10% of your time and a little money to it, and avoid certain situation. We just don't bother because getting a cold isn't (usually) that terrible.