CDC LC Quick Learn: Recognize the four Biosafety Levels
Virus Hunters: Inside Maryland's Biosafety Level 4 Lab More
Do You Know The Difference in Laboratory Biosafety Levels 1, 2, 3 & 4
Biosafety level - Wikipedia, the free encyclopedia
Biohazard sign for a biosafety level 2 laboratory. It states biosafety level 2, authorized personnel only.
Galveston National Laboratory
Positive pressure personnel suit - Wikipedia
In 2009, Ebola containment precaution for a NEEDLE Stick of worker who was in a vaccine lab. US and Germany seemed to no about the elaborate precautions needed for these patients.
Kate Rubins is a biologist-turned-astronaut who's studied infectious disease in a biosafety level 4 facility and on the ground in Congo.