Biodefense and Emerging Infectious Diseases
Biosafety Level 4 Laboratory Tour
Interior Security
Once past outside security, BSL-4 lab workers must pass an interior security station.

Interior Security
Measures Here Typically Include Combinations of the Following:
- Extensive background checks prior to employment for everyone who works in the building
- Guards who check everyone's identification and credentials
- Special identification cards that are scanned to provide an electronic record of who goes in and out and when
- Identification devices such as retinal or fingerprint scanners
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