I've worked in a BSL-3 lab, not BSL-4. It's pretty similar. Almost identical danger to the individuals in the lab, but different level of danger to the surround

I've worked in a BSL-3 lab, not BSL-4. It's pretty similar. Almost identical danger to the individuals in the lab, but different level of danger to the surrounding community... So if I screw up, I might die, but you'll be safe. In BSL-4, everyone might die. (At least that's roughly the reasoning behind the categorization of pathogens.) > You can't do anything else other than what you're doing at that moment. It's kind of a nice mode to be in while you're working. And it's very quiet. Because you're on that air hose that blows air into your suit continuously, you can't talk to anyone unless you're wearing a radio. So, you're in your own little bubble doing your own thing. This really is one of the best parts of the work. At certain times of the day / week, you literally had no way to contact anyone, and no one could contact you.