[kaila]

What I meant was- how does the CDC/NIH protect their workers in their level 4 labs? Those protocols must be used to protect health care workers.They have strict protocols for decontamination, with showers, etc.
They have much lower risk of infection in a level 4 lab, because everything is contained behind a hood. If you are in the real world, such as a hospital, you have blood, diarrhea, a combative patient, all exposing the nurse to a higher risk.
Use biolevel 4 safety precautions, not the isolation protocols we use for the common flu in the hospital.

[Black Agnes]

Let me put it another way.

If level 2 protocols are all that’s needed, why is the CDC wasting so much taxpayer money with level 4 protocols...?