introduction to biosafety and biosecurity

1. Biosafety
Introduction: Definitions and concepts
PROF.DR.BAYDAA HAMEED ABDULLAH

2. Hazard, Threat, and Risk
A hazard is an object that can cause harm
A threat is a person who has intent and/or ability to cause
harm to other people, animals, or the institution
A risk can be based on either a hazard and/or a threat

3. What is Risk?
The likelihood of an undesirable event happening, that involves a specific hazard or threat and has
consequences
Risk:- A combination of the probability of occurrence of harm (injury,
illness,death, damage etc) and the severity of that harm.
risk = probability × disutility

4. Hazard:- A source, situation, or act with a potential for causing harm. At workplace categorized:
Physical, Chemical and Biological
1- Chemical:- a- Smoke.
b- Toxic material.
2-Physical:-
a-Moving road tankers.
b- Noise.
3-Biological:

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 Biohazard: The potential source of harm caused by
biological agents or toxins

6. BIOSAFETY is protecting people from
dangerous pathogens
BIOSECURITY is protecting pathogens from
bad people

7.  Biosafety:-The set of containment principles, technologies and practices that are
implemented to prevent exposure to biological agents . and toxins, or their
accidental release.
 Biosecurity:-The set of measures taken to limit the threat posed by sudden
widespread disease or biological contamination, as from biological warfare, or
pandemic outbreaks

8. Laboratory Biosafety
Containment principles,
technologies, and practices
implemented to prevent
unintentional exposure to
pathogens and toxins, or
their unintentional release.

9. Laboratory Biosecurity
Protection, control and accountability for
valuable biological materials within laboratories,
in order to prevent their unauthorized access,
loss, theft, misuse, diversion or intentional
release.

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11. Laboratory
Acquired Infections

12. ▪ Infections (symptomatic / asymptomatic)
▪ Acquired through laboratory related activities as
a result of working with infectious agents
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13. ▪ Causative or defined event
□ 20%  equipment failure
□ 80%  human factors
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15. ▪ Top “4” accidents resulting in infection
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17. ▪ INGESTION
□ Consumption of a substance by an organism
▪ INOCULATION
□ Act of introduction of a substance into the body
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18. ▪ CONTAMINATION
□ Presence of a minor and unwanted substance or
impurity in the skin or mucous membrane
▪ INHALATION
□ Act of drawing air or other substances into the
lungs
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19. Laboratorysafetysymbols and hazard sign
A-Laboratory safety symbols
1- Green Eyewash Sign:- this sign to indicate the location of an eyewash station.

20. 2-Green First Aid Sign:
Lab Safety Signs .Use this symbol to identify the location of a first aid station

21. 3-Radiation Symbol
This radiation symbol is a little fancier than your standard trefoil, but it is easy to recognize the significance of the
symbol
Red Ionizing Radiation
Yellow optical radiation yellow radioactive sign yellow laser warning

22. 4-Blue Respiratory Protection:-
This sign tells you respiratory protection is required

23. 4- blue clovesThis sign means you need to wear gloves or other hand protection.
5-Blue Protective Clothing:- This symbol indicates mandatory use of protectiveclothing

24. B- Hazard Symbols :-
1-Health Hazard: A cancer-causing agent (carcinogen) or toxicity
substance to respiratory system , reproductive system and organs.

25. 2-Flame: Flammable materials or substances liable to self ignite
when exposed to water or air (pyrophoric).

26. 3-Gas Cylinder: Gases stored under pressure, such as ammonia or liquid nitrogen.

27. 4.Corrosion: Materials causing skin corrosion/burns or eye
damage on contact.

28. 5.Flame Over Circle: Identifies oxidizers. Oxidizers are chemicals that facilitate
burning or make fires burn hotter and longer
6.Skull and Crossbones: Substances, such as poisons and highly concentrated acids, which have an immediate and
severe toxic effect (acute toxicity).