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A biosafety level (BSL), or pathogen/protection level, is a set of biocontainment precautions required to isolate dangerous biological agents in an enclosed laboratory facility. The levels of containment range from the lowest biosafety level 1 (BSL-1) to the highest at level 4 (BSL-4).
Biosafety level 4 laboratories are designed for diagnostic work and research on easily respiratory-acquired viruses which can often cause severe and/or fatal disease. What follows is a list of select agents that have specific biocontainment requirements according to US federal law.
Primary containment requires using proper storage containers, good microbiological technique, and the use of appropriate safety equipment such as biological safety cabinets. Secondary containment is the protection of the environment external to the laboratory from exposure to infectious materials and is provided by a combination of facility ...
Risk Group 1: (no or low individual and community risk) A microorganism that is unlikely to cause human or animal disease. [12] Risk Group 2 : (moderate individual risk, low community risk) A pathogen that can cause human or animal disease but is unlikely to be a serious hazard to laboratory workers, the community, livestock or the environment ...
A biological hazard, or biohazard, is a biological substance that poses a threat (or is a hazard) to the health of living organisms, primarily humans. This could include a sample of a microorganism, virus or toxin that can adversely affect human health. A biohazard could also be a substance harmful to other living beings. [a]
A biosafety cabinet (BSC)—also called a biological safety cabinet or microbiological safety cabinet—is an enclosed, ventilated laboratory workspace for safely working with materials contaminated with (or potentially contaminated with) pathogens requiring a defined biosafety level.
Biosafety level 3 laboratories ... Pages in category "Biological hazards" ... Biological hazard; A. Aeromedical Biological Containment System;
In the 1990s, the US medical biological defense research effort (part of the U.S. Army's Biological Defense Research Program [BDRP]) was concentrated at USAMRIID at Fort Detrick. The army maintained state-of-the-art containment laboratory facilities there, with more than 10,000 ft2 of BSL-4 and 50,000 ft2 of BSL-3 laboratory space.