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Published byJonathon Hughson Modified over 9 years ago
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Risk Assessment in Animal Biosafety ► Risk Assessment Factors Pathogen/agent Animal Model (species) Procedures ► Proposed manipulations ► Assigned safe work practices
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Risk Assessment in Animal Biosafety ► Risk Assessment Factors Personnel Protective Equipment ► Personal Protective Equipment/Clothing ► Engineering Controls/Safety Devices Place/Facility for proposed research
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Risk Assessment in Animal Biosafety ► Species ► Natural infections ► Unpredictable - physical hazards Bites/scratches/splashes ► Permissive species ► Immune system of animal ► Shedding (urine, feces, sputum) ► Data? Transmission between cage mates? Between cages within room?
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Risk Assessment Process ► Prior to initiation of work ► Principal Investigator submits written risk assessment Written proposal Registration Form ► Submitted to the IBC/IACUC/Biosafety Office
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Committee Risk Assessment ► Questions/clarification ► Has PI started w/ Risk Group? Worked towards Biosafety Level? Verify that PI has identified: ► Risks involved ► Routes of exposure (nature/ lab settings) ► Signs/symptoms of infection ► Potential for shedding from animals ► At risk personnel (those contraindicated from work) ► Any special medical surveillance requirements Serum banking, immunizations, screening/evaluation
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Committee Risk Assessment ► Questions/clarification Verify that PI has Selected the Appropriate: ► BSL ► Work Practices ► PPE ► Containment Equipment To maximize protection of staff Does Facility meet requirements for BSL selected?
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Risk Assessment – Proposed Procedures ► Manipulations planned with the animal Blood collection Tissue harvesting/necropsy Aerosols, splash risk Sharps Genetic manipulation
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Working Safely with Sharps
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Risk Assessment - Personnel ► Immune status of host Altered competency – suppression (disease, therapy) Experience/Training WITH: ► Agent ► Animals ► Procedures ► Equipment ► Facility Safety Record/Attitude
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Risk Assessment ► Ensure that the PI’s group is involved in development of the SOP! Take ownership
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Risk Assessment – Equipment ► Cages/housing Open Static, MI (Filtration Efficiency) Ventilated Cage Racks w/ HEPA filters ► PPE Coat, gown, jump suits, full clothes change/shower Masks, face protection, Respirators
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Handling Microisolator Cages
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Risk Assessment – Facility ► Conformity w/ ABSL-1, ABSL-2, and ABSL-3 Facilities ► Compliance with pertinent: Guidelines Regulations Standards ► Enhanced Facilities
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Risk Assessment - Process ► Professional Judgment Required ► Expertise IACUC ► Animal model, animal care and use, animal regulations IBC/BSO ► Agent, exposure routes, med. Surveillance, facility design, equipment use/certification Principal Investigator ► Disease under study, scientific aim, lab techniques
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Risk Assessment - Process ► After review of Risk Assessment Factors: ► Select most appropriate BSL PPE Work Practices Engineering Controls Facility Controls ► SOP’s prepared and approved ► Clearance for each researcher/animal handler ► Written Emergency Response Plans
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Risk Assessment Process ► When you don’t have all the answers? Be Cautious/Conservative RA is evolving/dynamic process Change as info comes in ► Communicate RA and RM decisions to all involved
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LCMV – Risk Assessment Example ► National Risk Group Classification RG3 – neurotropic strains, RG2 – non- neurotropic strains ► Previous LAI via airborne route ► Shedding from animal (urine) ► Clone 13 (persistent shedding) ► Environmental stability (survives for weeks in animal waste)
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LCMV – Risk Assessment Example ► Use of sharps Inoculations, bleeds, necropsies ► Transport of tissues, infected cells, virus ► Protective Clothing Gowns, 2 pair of gloves, booties, face protection, Respiratory Protection ► Protective Equipment Microisolator cages, biosafety cabinets ► Place – ABSL-3 facility
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Case Study Example ABSL-2 rDNA Protocol – Vaccinia Virus ► Location A ► Registration(s) IACUC IBC ► Location B ► Registration(s) IACUC IBC ARC Haz. Agent Form EHS RTUIA-Animals State Human Pathogen registration
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Case Study Example ABSL-2 rDNA – Vaccinia Virus ► Location A ► Review of Training IACUC Orientation Animal Handling ► Location B ► Review of Training IACUC Orientation Animal Handling EHS Classes ► Biosafety, BBP, Chem Researcher Experience Form
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Case Study Example ABSL-2 rDNA – Vaccinia Virus ► Location A ► Specific SOP created none ► Location B ► Specific SOP created Entry, exit, supplies Protective clothing Biosafety cabinet use Safe sharps (devices/use) Decontamination Emergency response
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Case Study Example ABSL-2 rDNA – Vaccinia Virus ► Location A ► Additional Requirements Medical Surveillance ► Health history form ► Location B ► Additional Requirements Medical Surveillance ► Health history form ► Vaccinia immunization consult ► Employee Health review
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Case Study Example ABSL-2 rDNA – Vaccinia Virus ► Location A ► Training/Inspection Facility orientation ► Location B ► Training/Inspection Facility orientation State DPH Inspection ARC/EHS/VC start-up meeting w/ researcher Researcher work practice observation
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Case Study Example ABSL-2 rDNA – Vaccinia Virus ► Location A ► Implementation Vaccinia needlestick No incident report Vaccinia LAI and bacterial sepsis Hospitalization Report to State DPH Report to NIH OBA (significant incident/illness) ► Location B ► Implementation No incidents to date
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