
Biosafety Level 3
Topic
Biosafety Level 3 (BSL-3) is a high-containment standard applicable to clinical, diagnostic, teaching, research, or production facilities working with indigenous or exotic agents that may cause serious or potentially lethal disease through inhalation. Laboratories operating at this level employ strict biocontainment precautions, including controlled access, directional airflow, and the use of certified biosafety cabinets to protect personnel and the environment. Common pathogens studied under BSL-3 containment include Mycobacterium tuberculosis, SARS-CoV-2, and West Nile virus.

