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biosafety level

DEFINITIONS OF: biosafety level

1

n the level of safety from exposure to infectious agents; depends on work practices and safety equipment and facilities

Types:
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biosafety level 1
exposure only to infectious agents that do not ordinarily cause human disease
biosafety level 2
exposure to infectious agents that can cause disease in humans but whose potential for transmission is limited
biosafety level 3
exposure to infectious agents that can be transmitted by the respiratory route and which can cause serious infection
biosafety level 4
exposure to exotic infectious agents that pose a high risk of life-threatening disease and can be transmitted as an aerosol and for which there is no vaccine or therapy
Type of:
grade, level, tier
a relative position or degree of value in a graded group
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