Date post: | 26-Mar-2015 |
Category: |
Documents |
Upload: | alexa-wade |
View: | 226 times |
Download: | 3 times |
Biological Agents
Biological Agents - definition: A micro-organism (including those which have been genetically modified), a cell culture, and a human endoparasite which may be able to provoke any infection, allergy or toxicity...
Biological Agents - definition ctd.:…classified into 4 risk groups according to
their level of risk of infection Group 1: Unlikely to cause human
disease.
Group 2: Can cause human disease and might be a hazard to employees but unlikely to spread to the community.
Group 3: Can cause severe human disease and presents a serious hazard to employees and may present a risk of spreading to the community (usually effective prophylaxis or treatment).
Group 4 : Which causes severe human disease and is a serious hazard to employees and may present a high risk of spreading to the community - usually NO effective prophylaxis or treatment).
Put them in order of danger…
Hepatitis B virusFasciola HepaticaEbola virusStaphylococcus aureusE. coli 0103
Class 2Fasciola HepaticaStaphylococcus aureusClass 3Hepatitis B virus (* V D)E. coli 0103 (* T)Class 4Ebola virus
Legislation
Safety, Health and Welfare at Work Act 1989.
Safety, Health and Welfare at Work (Biological Agents) Regulations 1994.
Safety, Health and Welfare at Work (Biological Agents) Amendment Regulations 1998.
Reg. 3 - Employer’s Duties avoid use prevent exposure where risk shown (R.A.)reduce exposure to as low as possibleapply schedule 2good safety & hygiene principles even
where low risknot deliberate work (schedule 1) - comply
with key regs.
Reg.. 4 - Risk Assessment
The process of evaluating and ranking the risks to health and safety at work arising from hazards at the workplace.
Reg.. 4 - Risk Assessment
Review Biological Agent Stop
+Your work /Alter ?? SAFE ??
YES NO
Reg.. 4 - Risk AssessmentAssess risk: nature, degree & duration of
exposure, safety measureswrittenseveral groups: all hazardous agentsrenew regularlyrelevant information: classification,disease
info., potential allergic or toxigenic effectsknowledge of the diseaserecommendations from H.S.A.
RA - Also considerMeans of infectionIf not classified - what likely classification
(err on the higher risk level) Persons at risk..Particularly “Special Risk Gps” e.g.
pregnant employeesThe doseNature of the work
Reg.. 5 - Information/NotificationRA and relevant information to H. S. A.where RA reveals risk to health to provide
appropriate information (RA results, # of employees exposed, emergency plan)
inform H.S.A. of accident/incidentnotification to H.S.A. of 1st time work with
class 2-3 biol. Agents, etc.notification details.
Reg.. 6 - Protective MeasuresNo eating/drinkingprovide suitable PPEsuitable hygiene facilitiesPPE arrangementssample procedures
Reg.. 6 - Protective Measures ctd.work clothes separate from PPEdecont./cleaning procedures -
PPE/clothesapply special protective measures from
RAvaccination procedurerecommendations of Schedule 5
Reg.. 7 - Information, Training…
Provide sufficient training health risks, precautions, hygiene, PPE., accident procedures
other employers/employeeinduction training and updatingwritten instructions, display noticescommunication in the event of an emerg.
Reg.. 8 - Reporting Accidents
Employee’s duty to report any accident/incident.
Reg.. 9 - Records
Record of employee exposed to Gp. 3/4for 10 yearsfor at least 40 years where potential disease
indications neededaccess to personal informationaccess to relevant collective informationaccess to relevant agencies, personnel
Reg.. 10. Health Surveillance
Provide relevant health surveillance
Reg. 10. Healthcare/Veterinary WorkPay particular attention to the risks of this
workPay particular attention to the uncertainties
of such work UNIVERSAL PRECAUTIONS
Decontamination/dis-infection proceduresWaste proceduresIsolation facilities - Gp 3 or 4
Reg.. 11 - Labs, Animal Rooms
Determine containment measures Gp. 2, 3 or 4 for research, development, teaching or diagnostic purposes.
Carryout work in accordance with relevant containment level
Uncertainty - level 2 may cause disease but not cultivating/concentrating BA
Containment level 3 or 4 when appropriate
Schedules
1 - Indicative list of Activities2 - Risk Reduction Measures3 - Biohazard Sign4 - Classification of Biological
Agents (amended by 1998 Regs).
Schedules
5 - Vaccination Practice6 - Health Surveillance7 - Containment measures/levels8 - Industrial Processes
Hierarchy of Controls - Sch. 2Eliminate - substitute - limit use of
agent;limit number of employees exposed;use engineering controls;minimise releaseuse collective (then individual)
protective measures;
Hierarchy of Controls - Sch. 2
use hygiene measures;use signs;emergency planstesting for agentwaste handlinghandling procedures
Biohazard sign
BLACK ON A YELLOW BACKGROUND
PRACTICAL POINTS
Biological Safety Cabinet
Vrs
Laminar Flow Cabinet
PRACTICAL POINTS
EQUIPMENT
MAINTENANCE
(Including decontamination procedures)
PRACTICAL POINTS
WASTE DISPOSAL
(autoclaving, secure storage)
Resources
Health & Safety Exective (UK) MaterialBS 5726 (1992) - Biological Safety Cabinets
Parts 1-4Codes of PracticeSOPs