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BSL 1 Biosafety Training

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Presentation on theme: "BSL 1 Biosafety Training"— Presentation transcript:

1 BSL 1 Biosafety Training
FHSc. Safety Office Health Sciences Center 1J11, ext Print out the accompanying test and return (in handwriting) to 1J11 HSC or fax to

2 How to find us HSC 1J11                                                                   [Printable

3 Information for undergrad courses
You will be contacted only if you have failed your quiz, <75%. Your instructional assistant will be contacted at the same time. You will not be permitted to attend the biological labs of your course until you pass.

4 Biosafety in Canada: Standards
Public Health Agency of Canada (PHAC) through the “Laboratory Biosafety Guidelines” Canadian Food Inspection Agency (CFIA) has “Veterinary Standards for Animal Facilities” Human Pathogens and Toxins Act C-11 Ministry of Environment Canada (MOE) for waste disposal

5 PHAC has “Laboratory Biosafety Guidelines”
Sets the standards for work with biological agents such as bacteria, viruses, fungi parasites, prions and hazardous cell lines. The health risk associated with an organism will determine the protocols which must be followed to work with it.

6 Level of Hazard: BSL 1,2,3,4 Internationally and in Canada, there are four levels of biosafety, each associated with a type of lab and specific equipment. The personal protection required increases with the level of hazard. Labs, techniques and methods required increased safety with the level of hazard.

7 Risk evaluation to determine level of use
Risk evaluation of an agent is part of the responsibility of the supervisor for the project and is reviewed by the University Presidential Biosafety Advisory Committee. All individuals working with an agent must comply with the level of risk.

8 Factors affecting risk
agent in use eg. specific bacterium pathogenicity eg. degree of disease infectious dose eg. # organisms to cause disease mode of transmission eg. directly by blood or indirectly through the air

9 Factors affecting risk
techniques in use host range eg. does it infect animals as well as humans effective treatment or prevention eg. is there a vaccine? Potential for aerosol creation eg. sonication, vortexing or homogenization

10 Factors affecting risk
Volume of material eg > 10 liters Concentration of material Stability in the environment eg. will it survive on a benchtop? Use of re-combinant DNA eg. oncogenicity, replication ability, host range, ability to revert to wild type

11 Biosafety Level 1 (BSL 1) Low individual risk Low community risk
unlikely to cause disease in healthy workers or animals treatment / prevention is available can work on the open bench, examples include: e.coli, normal cell culture (non-viral, non-cancerous)

12 Biosafety Level 2 (BSL 2) Moderate individual risk
Limited community risk causes human or animal disease under appropriate use, is unlikely to cause death to healthy laboratory workers or animals treatment / prevention is available work to be completed in a Class II biological safety cabinet (BSC) examples include: adenovirus, Helicobacter pylori, 293 cells, COS cells, retrovirus

13 Biosafety Level 3 (BSL 3) High individual risk Moderate community risk
usually causes serious human or animal disease including death. Usually spreads by direct contact of blood or body fluids from one individual to another generally, no cure / prevention available must work in a Biosafety Level 3 facility (McMaster) examples include: HIV, Mtb, West Nile Virus

14 Biosafety Level 4 (BSL 4) High individual risk High community risk
human disease including death and may be readily transmitted through casual contact no treatment / prevention available must work in a Biosafety Level 4 facility (Winnipeg) examples include: Ebola, Marburg virus

15 Which level of organisms are being used in your lab ?
Ask to see the biological equivalent of an “MSDS” for the agents you will be using. Or look up the information on the Internet site for the supplier of the product. Or reference a large database such as ATCC or PHAC

16 Basic Safety Practices - BSL 1
These requirements must be followed in all labs working with biological agents. Know and understand them. Know the emergency number; hospital – 5555, campus – 88 Ensure that a working alone policy has been developed Lab coat – used specifically for tissue culture Suitable footwear – closed toed, but not necessarily closed heeled

17 Basic Safety Practices
Longer hair is to be restrained so that it cannot come into contact with hands, specimens, containers or equipment. Oral pipetting of any substance is prohibited in any lab, use only mechanical fluid transfer devices.

18 Basic Safety Practices
No eating or storage of food or drink in the labs…dispose of any food wrapping or containers BEFORE you enter the lab, including water bottles and gum. Keep personal items out of the working area of the lab.

19 Basic Safety Practices
It is wise to report any increased susceptibility to infection to your supervisor or medical advisor. Ask the lab supervisor if you are unclear about any hazard or process. Dispose of all biological waste in the designated container only.

20 Waste disposal Biological waste is to be disposed of into the yellow or red bags in the biohazard labeled cardboard boxes Sharps (scalpel blades, razor blades, needles on syringes) must be disposed into a sharps container and then disposed as biological waste when ¾ full

21 Basic Safety Practices
Open wounds, cuts, scratches and grazes should be covered with waterproof dressings BEFORE working with any biological material. Limit use of sharps and glass. DO NOT RECAP NEEDLES

22 Basic Safety Practices
Minimize aerosol creation Label all biological material Where possible and appropriate, protect yourself by immunization esp Hep B when working with blood or body fluids.

23 Personal protection for BSL 1
Protective laboratory clothing must be worn in the lab but not worn out of the lab - closed toed footwear wear lab coats at all times goggles – if using contact lenses - if required by the protocol

24 Personal protection for BSL 1
Gloves…latex for water based materials …nitrile or vinyl for organics Change gloves when contaminated. Wash your hands frequently, particularly when leaving the laboratory.

25 Emergencies Staff must understand all hazards with which they work, including emergency response. - read and know the emergency and spill response protocol posted in your lab - report any spills or injuries to your supervisor know the location of spill kits and first aid kits know the location of eyewash and shower

26 Training personnel must receive training on biohazards and safe handling protocols - pass for biotraining is 75% - local lab training to be signed by trainee and trainer - retraining program includes annual update

27 Physical lab requirements for BSL 1
Physical requirements are a functional and well designed lab Doors to the laboratory must not be left open

28 Working requirements for BSL 1
Basic microbiology lab practices, keep the lab organized and clean Open bench is suitable Routine decontamination techniques to maintain sterility - contamination of cultures is a risk in an unorganized lab

29 Supervisor responsibilities for BSL 1
Access to the laboratory is restricted to authorized personnel ie. those who have been advised of the potential hazards, trained and approved by the supervisor

30 Supervisor responsibilities for BSL 1
Post the lab with a biohazard sign indicating the biosafety Level and organism(s) in use Contaminated materials or equipment leaving the lab must be appropriately decontaminated first

31 Supervisor responsibilities for BSL 1
All materials must be contained so that they will not be released to the environment. Disinfectants effective against the material in use, must be available at all times. Have available leak proof containers for transporting materials between labs.

32 Supervisor responsibilities for BSL 1
Maintain an effective insect and rodent control program. Investigate spills and accidents, keep records, use results in future training.

33 Supervisor responsibilities for BSL 1
Biological safety information, such as a manual, must be available - with procedures for the lab - it must be read and followed by all - it must be updated regularly

34 Supervisor responsibilities for BSL 1
Provide MSDSs or equivalent. Ensure compliance within lab. Any use of animals must comply with the CCAC and any training requirements of the CAF and follow the SOP.

35 Additional biosafety lab information
1) Bunsen burners 2) Ultraviolet light 3) Causes of contamination 4) airflow diagram of a biological cabinet 5) airflow diagram of a fume hood 6) airflow diagram of a clean air bench

36 Bunsen Burners Substitute:
Do not use combustibles or flammables in a biological cabinet – 70% recirculated will allow buildup of leaking gases Upward hot air flow disrupts downward laminar flow May create holes in the HEPA filters Splashes may occur (when using loops) and could cause contamination Substitute: Micro incinerator Alcohol burner If the flame was to extinguish there would be a continuous supply of gas into the cabinet – which is 70 percent recirculated – could cause an explosion

37 Ultra Violet Light UV lights are not recommended:
they provide a false sense of security - not giving off UV light (just prior to the end life of the bulb) only disinfects the surface – could contact a layer of media protein covering the pathogen casts a shadow, leaving areas that remain unexposed to the UV wavelengths could cause burns / damage eyes – turn off when working in the room UV lights are not recommended, provide only surface disinfection, Require frequent testing - appear to be functioning but are not giving off germicidal UV light, can cause burns If UV lights are used be sure the lab has no people in it, close the sash before turning the light on (turn the motor blower off when you close the sash). Equipment will also cast a shadow – show diagram of light / shadow resulting in areas that remain unsterilized

38 Causes of Contamination
1) YOU! hands not clean, bacteria/spore under your nails gloves – not sterile from the box dirty lab coats lab coat sleeves should be taped place all materials (cleaned) required into hood BEFORE work 2) Incubator Avoid dip in line from CO2 tank Clean humidity source regularly Clean all surfaces after spill, including holes on trays If at ground level – tape bench paper onto floor

39 Class II Biological Safety Cabinet use with BSL 2 agents
yes - personnel protection yes - product protection yes - environmental protection Designed to contain biological hazards, Inward airflow for personnel protection, HEPA filtered exhaust air for environmental protection, Supply air HEPA filter for product protection, Open front with inward airflow for personnel protection, Downward HEPA filtered laminar airflow for product protection, HEPA filtered exhaust air for environmental protection, Exhaust approximately 30% of total air handled and recirculate 70% in cabinet

40 Chemical Fume Hood do not use with biological agents
yes - personnel protection no - product protection no - environmental protection Offers only personal protection, always exhausts air to the outside, does not offer protection to the product or the environment, as there is no filtration of intake and exhaust air, draws contaminants in the laboratory air directly over the product being worked on

41 Clean Air Bench use only with BSL 1
no - personnel protection yes - product protection no - environmental protection Provide product protection only, Product protection is provided by creating a unidirectional airflow generated through a HEPA filter, discharge air goes directly into workroom

42 Information for McMaster staff/students
Do not ship any samples, or take samples with you on a trip. Check with Mike McGuire to ensure it does not require Transportation of Dangerous Goods compliance File a Materials Transfer Agreement with Bertha Monrose before you share material with another institution

43 Information for McMaster staff/students
Do not transform your own body cells. The immune protection you would normally have has now been bypassed Obtain a biosafety approval number from the Biosafety office, HSC 1J11 ext before importing material or working with biological material

44 Information for McMaster staff/students
Cell lines can be BSL 1 or BSL 2. Check with your supplier or your supervisor. If you are isolating primary cell lines from ill humans or animals, they may be BSL 2 until they are well characterized. Check with the Biosafety office first.

45 Use of a biological cabinet
Some labs may chose to use Class II biological cabinets to maintain sterility for their BSL 1 agents. The following slides cover information for the use of biological cabinets.

46 Before you begin Check to ensure you are using the right cabinet for your work. Check to see it has been certified in the last 12 months. Ensure the UV light is off anytime anyone is in the room. To start, let the cabinet run for 3 minutes to purge air.

47 Before you begin Use a disinfectant that will kill any organism in the cabinet Check to see that the window is in the correct position Do not place pens or paper inside the cabinet Never block the grilles Segregate clean items from dirty ones

48 Before you begin Wear a lab coat and tape the coat at the wrist
Pull the gloves over the taped coat Sterilize the gloves with a 70% alcohol wash As you place items into the hood, spray them down with alcohol to sterilize

49 Before you begin Place sterile items on the left side
Place items from the incubator at center back You may place a work pad soaked in disinfectant on the center front work area On the right side, place a waste bucket for fluids, one for sharps, one for solids

50 Working in the cabinet Keep lab doors closed and keep others out of the room Only one person working in the cabinet Use good aseptic technique Slow movements directly in or out Keep sterile and non-sterile items separated Do not use Bunsen burners in cabinet

51 Working in the cabinet Have posted spill protocol nearby
No gum, food or drink See the two powerpoint presentations on Good Culture Practices and Misidentification and Contamination, to learn more about good practices and why they are important.

52 When you are finished Spray each item with a disinfectant as you take it out of the cabinet Fill the liquid waste to the max fill line to achieve appropriate concentration. Mark on the time when it can be disposed Seal the top of the solid waste bag, spray it, put it into the biohazard cardboard box Close the top of the sharps container, leave it in the hood

53 When you are finished Spray all interior surfaces with the disinfectant, remember to spray the plastic window facing you. If possible, leave the cabinet running. If not, let it purge for 3-4 minutes. If there is anything unusual, tell your supervisor and leave a note for the next person who will be using the hood.

54 Clean ----------------------- Dirty
Suggested layout for working in a Class II biohood A new materials B materials from incubator C garbage D materials to go back into incubator E working surface F wet material solution (bleach) Clean Dirty

55 Contact information For additional training videos, biosafety approval, import permits, reporting of spills or lab acquired infections, or general questions FHSc. Safety Office Health Sciences Center 1J11, ext Carol Carte or Karin Cassidy


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