credits bmbl December 7 '06.doc - Central Michigan University

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Laboratory Biosafety Level Criteria – Biosafety Level 4 and provide differential pressure/directional airflow between adjacent areas within the laboratory. Redundant supply fans are recommended. Redundant exhaust fans are required. Supply and exhaust fans must be interlocked to prevent positive pressurization of the laboratory. The ventilation system must be monitored and alarmed to indicate malfunction or deviation from design parameters. A visual monitoring device must be installed near the clean change room so proper differential pressures within the laboratory may be verified. Supply air to the laboratory, including the decontamination shower, must pass through a HEPA filter. All exhaust air from the suit laboratory, decontamination shower and fumigation or decontamination chambers must pass through two HEPA filters, in series, before discharge to the outside. The exhaust air discharge must be located away from occupied spaces and air intakes. All HEPA filters must be located as near as practicable to the laboratory in order to minimize the length of potentially contaminated ductwork. All HEPA filters must be tested and certified annually. The HEPA filter housings should be designed to allow for in situ decontamination and validation of the filter prior to removal. The design of the HEPA filter housing must have gas-tight isolation dampers; decontamination ports; and ability to scan each filter assembly for leaks. 10. HEPA filtered exhaust air from a Class II BSC can be safely re-circulated back into the laboratory environment if the cabinet is tested and certified at least annually and operated according to the manufacturer’s recommendations. Biological safety cabinets can also be connected to the laboratory exhaust system by either a thimble (canopy) connection or a direct (hard) connection. Provisions to assure proper safety cabinet performance and air system operation must be verified. 11. Pass through dunk tanks, fumigation chambers, or equivalent decontamination methods must be provided so that materials and equipment that cannot be decontaminated in the autoclave can be safely removed from the BSL-4 laboratory. Access to the exit side of the pass-through shall be limited to those individuals authorized to be in the BSL-4 laboratory. 12. Liquid effluents from chemical showers, sinks, floor drains, autoclave chambers, and other sources within the laboratory must be decontaminated by a proven method, preferably heat treatment, before being discharged to the sanitary sewer. 72
Laboratory Biosafety Level Criteria – Biosafety Level 4 Decontamination of all liquid wastes must be documented. The decontamination process for liquid wastes must be validated physically and biologically. Biological validation must be performed annually or more often if required by institutional policy. Effluents from personal body showers and toilets may be discharged to the sanitary sewer without treatment. 13. A double-door, pass through autoclave(s) must be provided for decontaminating materials passing out of the cabinet laboratory. Autoclaves that open outside of the laboratory must be sealed to the primary wall. This bioseal must be durable and airtight. Positioning the bioseal so that the equipment can be accessed and maintained from outside the laboratory is strongly recommended. The autoclave doors must be interlocked so that only one can be opened at any time and be automatically controlled so that the outside door to the autoclave can only be opened after the decontamination cycle has been completed. Gas and liquid discharge from the autoclave chamber must be decontaminated. When feasible, autoclave decontamination processes should be designed so that over-pressurization cannot release unfiltered air or steam exposed to infectious material to the environment. 14. The BSL-4 facility design parameters and operational procedures must be documented. The facility must be tested to verify that the design and operational parameters have been met prior to operation. Facilities must also be re-verified annually. Verification criteria should be modified as necessary by operational experience. 15. Appropriate communication systems must be provided between the laboratory and the outside (e.g., voice, fax, and computer). Provisions for emergency communication and access/egress should be considered. 73
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Biosafety in Microbiological and Bi
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SECTION VIII-H: Prion Diseases 299
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Forward Biosafety in Microbiologica
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Editors: L. Casey Chosewood, MD Dir
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Guest Editors: Matthew J. Arduino,
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Charles B. Millard, PhD Lieutenant
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Robert Bull Karen B. Byers Jane Cap
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Thomas L. Miller Douglas M. Moore M
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Robert Yarchoan Uri Yokel Lisa Youn
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Introduction laboratories chose not
Page 21 and 22: Introduction RISK CRITERIA FOR ESTA
Page 23 and 24: Introduction BMBL includes an impor
Page 25 and 26: Section II Biological Risk Assessme
Page 27 and 28: Biological Risk Assessment informat
Page 29 and 30: Biological Risk Assessment The NIH
Page 31 and 32: Biological Risk Assessment effectiv
Page 33 and 34: Biological Risk Assessment Third, m
Page 35 and 36: Biological Risk Assessment 14. Oxma
Page 37 and 38: Principles of Biosafety Safety equi
Page 39 and 40: Principles of Biosafety Often an in
Page 41 and 42: Principles of Biosafety Four standa
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Page 45 and 46: Laboratory Biosafety Level Criteria
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Page 75 and 76: Section V Vertebrate Animal Biosafe
Page 77 and 78: Vertebrate Animal Biosafety Level C
Page 119 and 120: TABLE 1 SUMMARY OF RECOMMENDED BIOS
Page 121 and 122: Principles of Laboratory Biosecurit
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Principles of Laboratory Biosecurit
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Occupational Health and Immunoproph
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Agent Summary Statements - Bacteria
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• Section VIII-B: Fungal Agents A
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Agent Summary Statements - Fungal A
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• Section VIII-C: Parasitic Agent
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Agent Summary Statements - Parasiti
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• Section VIII-D: Rickettsial Age
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Agent Summary Statements - Ricketts
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Agent Summary Statements - Ricketts
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• Section VIII-E: Viral Agents Ag
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Agent Summary Statements - Viral Ag
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Agent Summary Statements - Arboviru
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• Section VIII-G: Toxin Agents Se
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Agent Summary Statements - Toxins i
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Agent Summary Statements - Toxins A
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Agent Summary Statements - Toxins L
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Agent Summary Statements - Toxins e
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Agent Summary Statements - Toxins o
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• Section VIII-H: Prion Diseases
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Agent Summary Statement - Prion Dis
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Appendix A Proper maintenance of ca
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Appendix A declined. However, in ma
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Appendix A It is possible to exhaus
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Appendix A 4. The Class II, Type A2
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Appendix A prohibited. Furthermore,
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Appendix A plastic wrappers, pipett
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Appendix A touch-plate microburners
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Appendix A SECTION VI FACILITY AND
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Appendix A Development of Containme
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Appendix A C. Airflow Smoke Pattern
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Appendix A TABLES Table 1. Selectio
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Appendix A Table 3. Field Performan
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Appendix A FIGURES Figure 1. HEPA f
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Appendix A Figure 3. The Class II,
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Appendix A Figure 5B. The Class II,
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Appendix A Figure 8. The Class III
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Appendix A Figure 9B. The vertical
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Appendix A Figure 11. A typical lay
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Appendix A REFERENCES 1. Centers fo
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Appendix B Decontamination and Disi
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Appendix B surfaces are contaminate
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Appendix B TABLE 1 DESCENDING ORDER
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Appendix B dioxide gas exits the ge
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Appendix B d The effectiveness of a
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Appendix C Transportation of Infect
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Appendix C 1600 Clifton Road, N.E.,
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Appendix C disease in humans or in
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Appendix C Biological specimen, Cat
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Appendix D Agriculture Pathogen Bio
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Appendix D simultaneous opening of
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Appendix D 14. Pathological inciner
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Appendix D Wastes and other materia
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Appendix D Camelpox virus b a, b, c
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Appendix D SPECIAL ISSUES The impor
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Appendix D required by the USDA and
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Appendix D depression, anorexia, an
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Appendix D laboratory with enhancem
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Appendix D five day period of conta
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Appendix D slaughterhouses or indus
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Appendix D virus does not cause any
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Appendix D NDV is classified in the
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Appendix D movement permit is requi
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Appendix D Spring Viremia of Carp V
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Appendix D REFERENCES 1. Hess WR. A
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Appendix D 37. Alexander DJ. Newcas
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Appendix E Arthropod Containment Gu
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Appendix F Select Agents and Toxins
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Appendix G IPM issues and requireme
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Appendix H Working with Human, NHP
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Appendix I Guidelines for Work with
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decontaminated periodically, for ex
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0.25N, and/or sodium hypochlorite (
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k Irradiation causes a dose-depende
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7. Morin R, Kozlovac J. Biological
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Appendix J NIH Oversight of Researc
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Appendix K Resources for Informatio
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Appendix K E-mail: http://www2.gsu.
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Appendix K and http://www.who.int/c
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Appendix L HEPA High Efficiency Par
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