1: Agents not associated with consistently causing disease in healthy adults |
Lab coat and gloves |
Bacillus subtilis |
2: Agents causing mild, treatable human disease |
Biosafety cabinets; limited lab access |
Rabies, polio, seasonal flu |
3: Agents causing serious human disease with possible treatment: high individual risk, low community risk |
Decontamination of waste and lab clothing |
Tuberculosis, anthrax, SARS |
3 ‘Enhanced’: Borderline BSL-3/BSL-4 |
Lab in isolation zone; dedicated power and air systems |
Reconstructed 1918 flu virus |
4: Agents likely to cause serious human disease with no treatment: high individual risk, high community risk |
Full-body, air-supplied, positive pressure suits |
Ebola, Nipah virus |
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