A biosafety level is the level of the biocontainment precautions required to isolate dangerous biological agents in an enclosed facility. The levels of containment range from the lowest biosafety level 1 (BSL-1) to the highest at level 4 (BSL-4). In the United States, the Centers for Disease Control and Prevention (CDC) have specified these levels. In the European Union, the same biosafety levels are defined in a directive.
Famous quotes containing the word level:
“It is the American vice, the democratic disease which expresses its tyranny by reducing everything unique to the level of the herd.”
—Henry Miller (18911980)