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biosafety level

   Also found in: Medical, Acronyms, Encyclopedia, Wikipedia 0.02 sec.
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Noun1.biosafety level - the level of safety from exposure to infectious agents; depends on work practices and safety equipment and facilities
tier, grade, level - a relative position or degree of value in a graded group; "lumber of the highest grade"
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


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Baxter's vaccine production facilities are engineered for BioSafety Level 3 production, which means that they can use wild-type strains to help accelerate production.
BAXTER GETS CONTRACT FROM U.K. NHS FOR H5N1 FLU VACCINE by Worldwide Biotech
The new, more sophisticated installation might include so-called biosafety level 4 labs, in which scientists would wear outfits resembling space suits tethered to air supplies while working on zoonotic diseases that can jump from animals to people.
Outpost Against Foot and Mouth by Top Producer
Working under biosafety level 3, the second-highest level of protection against biohazards, Tumpey's team found that the reconstructed virus killed otherwise-healthy mite in 3 to 5 days.
Killer findings: scientists piece together 1918-flu virus by Brownlee, C. / Science News
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