biosafety level
Noun | 1. | ![]() |
单词 | biosafety level | |||
释义 | biosafety level
biosafety levelbiosafety level(1) The degree of caution required when working with specific groups of pathogens(2) A specific combination of work practices, safety equipment, and facilities, intended to minimise exposure of workers and environment to certain classes of pathogens. Biosafety level BL 1—Organisms are relatively innocuous and are not known to cause infection in healthy human adult—e.g., Bacillus subtilis and Naegleria gruberi. BL 21—Organisms are “moderate risk” agents that may cause human disease of varying severity, potentially affecting healthy adults; often good microbiologic technique, such as minimising exposure to aerosols, is a sufficient precaution for these agents—e.g., C difficile, hepatitis A, B and C, influenza A, Lyme disease, dengue fever, Salmonella; mumps, measles, HIV, scrapie, MRSA and VRSA. BL 32—Organisms are indigenous or exotic and may infect personnel by aerosols, autoinoculation or ingestion, resulting in potentially serious or lethal consequences—e.g., Mycobacterium tuberculosis, Bacillus anthracis, West Nile virus, Venezuelan equine encephalitis virus, Eastern equine encephalitis virus, Hendra virus, SARS coronavirus, Salmonella typhi, Coxiella burnetii, Rift Valley fever virus, Rickettsia rickettsii and yellow fever virus. BL 4—Organisms are dangerous and exotic, require a maximum containment facility and pose a high individual risk of exposure and risk to laboratory personnel—e.g., Bolivian and Argentine hemorrhagic fevers, Marburg virus, Ebola virus, Lassa fever, Crimean-Congo hemorrhagic fever and other various hemorrhagic diseases. BSL 4 agents may be transmitted by aerosol; there is no vaccine or therapy. biosafety levelEpidemiology A classification for the degree of caution required when working with specific groups of pathogens. See Maximum containment facility.biosafety level(bī″ō-sāf′tē),BSLSee BSL biosafety level
Words related to biosafety level
|
|||
随便看 |
|
英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。