These are the requirements for a Bio-Safety Level 4 facility:
Now that the virus is "in the wild" why are CDC et al being so cavalier about the risks?
BSL-4
BSL-4 builds upon the containment requirements of BSL-3 and is the highest level of biological safety. There are a small number of BSL-4 labs in the United States and around the world. The microbes in a BSL-4 lab are dangerous and exotic, posing a high risk of aerosol-transmitted infections. Infections caused by these microbes are frequently fatal and without treatment or vaccines. Two examples of microbes worked with in a BSL-4 laboratory include Ebola and Marburg viruses.
In addition to BSL-3 considerations, BSL-4 laboratories have the following containment requirements:
Laboratory practices
- Change clothing before entering.
- Shower upon exiting.
- Decontaminate all materials before exiting.
Safety equipment
- All work with the microbe must be performed within an appropriate Class III BSC , or by wearing a full body, air-supplied, positive pressure
suit.
Facility construction
- The laboratory is in a separate building or in an isolated and restricted zone of the building.
- The laboratory has dedicated supply and exhaust air, as well as vacuum lines and decontamination systems.
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Source:
http://www.cdc.gov/training/QuickLearns/biosafety/#tabs-10
http://www.cdc.gov/training/QuickLearns/biosafety/#tabs-11Also review the previous pages (1 through 9) as BSL-4 builds upon those requirements.
