CIW User Interface Designer

Which statement best describes BSL-4 containment?

It is limited to nonpathogenic teaching strains It is the highest containment level and may use Class III cabinets or positive-pressure suits in specially designed facilities It never requires respiratory protection It is identical to BSL-2 except for double gloves

Correct Answer:

It is the highest containment level and may use Class III cabinets or positive-pressure suits in specially designed facilities

Explanation:

BSL-4 is the highest laboratory containment level and is used for very high-risk agents. Work is performed in specialized facilities using Class III cabinets or positive-pressure suit laboratories with stringent engineering and procedural controls.

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