MicroBio Chapter 9 Flashcards
To prevent the unintentional exposure to pathogens and toxins or their accidental release
Biosafety
To prevent the intentional exposure to pathogens and toxins or their intentional release
Biosecurity
If biosafety is to keep the bad technology from the people, then biosecurity
Is to keep bad people from the technology
It is a potential for harm. Often associated with an activity that can cause undesired injury
Hazard
3 Hazard Categories
Chemical
Physical
Biological
Biosafety conditions
BSL-1 to BSL-4
Not known to consistently cause disease in healthy adult humans and minimal potential hazard to lab personel. E.coli
BSL-1
Moderate potential hazard to personnel and environment. Includes bacteria that cause mild disease, ot are difficult to contract via aerosol in lab setting. Hepa A virus
BSL-2
Microbes that can either be indigenous or exotic, they can cause potentially lethal disease through respiratory transmission. SARS
BSL-3
Dangerous and exotic, posing a high risk of aerosol transmitted infections. Infections caused by these microbes are frequently fatal without treatment or vaccines. Smallpox virus
BSL-4
Levels of biological hazards
Level 1-4
Bacteria that are harmless to humans. Chicken pox, e.coli
Level 1
Bacteria that cause mild symptoms. Salmonella, HIV
Level 2
Have severe of even fatal symptoms but can be treated with vaccines. TB malria, anthrax
Level 3
Can cause severe illness or death but have no known treatment or vaccine. Ebola, bird flu
Level 4
