PMLS LAB Flashcards
Basis for classifying microorganisms into risk groups and biosafety levels
RISK MANAGEMENT PROCESS
What are the components of Risk Management Process
> IDENTIFICATION OF RISKS
RISK ASSESSMENT
RISK MITIGATION PLAN
IMPLEMENTATION AND MONITORING
REVIEW AND UPDATE RISK PLAN
No or Low Individual or community risk. Unlikely to cause disease.
RISK GROUP 1
Laccaria bicolor, Saccharomyces cerevisiae, Lactobacillus acidophilus, Baculoviruses, adeno-associated virus
RISK GROUP 1
Moderate individual risk, Low Community risk. With treatments available
RISK GROUP 2
Human blood, Streptococcus pyogenes, Giarda spp., Microsporum canis, Human adenoviruses, Hepatitis virus
RISK GROUP 2
High Individual Risk. Low Community risk. Effective and preventive treatments are available
RISK GROUP 3
Yersinia pestis, Francisella tularensis, Coccidioides immitis, Prions, Hantavirus, Influenza viruses A H1N1 (1918), H2N2 (57-68), and H5N1 (Bird flu)
RISK GROUP 3
High Individual and High Community Risk. Effective and preventive treatments are NOT USUALLY available.
RISK GROUP 4
Small pox Virus, Ebola Virus
RISK GROUP 4
Usually no bacteria, parasites, and fungi are observed in this group
RISK GROUP 4
Term used to describe the containment principles, the technologies, practices that are implemented to prevent unintentional exposure to pathogens and toxins, or their accidental release
BIOSAFETY
- LABORATORY TYPE: Basic teaching, research
- LABORATORY PRACTICES: Good Microbiological Techniques (Examples: Aseptic Techniques, PPE)
- SAFETY EQUIPMENT: None, Open bench
BIOSAFETY LEVEL 1 (RISK GROUP 1)
- LABORATORY TYPE: Primary health services, Diagnostic Services, Research
- LABORATORY PRACTICES: GMT, Protective Clothing, Biohazard signs
- SAFETY EQUIPMENT: Open bench plus Biosafety Cabinet for potential aerosols
BIOSAFETY LEVEL 2 (RISK GROUP 2)
- LABORATORY TYPE: Special diagnostic services, Research
- LABORATORY PRACTICES: GMT, Protective Clothing, Biohazard signs, plus special clothing, controlled access, directional airflow.
- SAFETY EQUIPMENT: BSC and other primary devices for all activities
BIOSAFETY LEVEL 3, CONTAINMENT (RISK GROUP 3)
- LABORATORY TYPE: Dangerous pathogen units
- LABORATORY PRACTICES: GMT, Protective Clothing, Biohazard signs, plus special clothing, controlled access, directional airflow, plus airlock entry, shower exit, special waste disposal
- SAFETY EQUIPMENT: Class III BSC or positive pressure suits with Class II BSCs, double ended autoclave
BIOSAFETY LEVEL 4, MAXIMUM CONTAINMENT (RISK GROUP 4)
Institutional and personal security measures designed to prevent the loss, theft, misuse, diversion, and intentional release of pathogens to the environment
BIOSECURITY
COMPONENTS OF CHAIN OF INFECTION
> INFECTIOUS AGENT
RESEVOIR
PORTAL OF EXIT
MODE OF TRANSMISSION
PORTAL OF ENTRY
SUSCEPTIBLE HOST
Pathogenic microbes, Virus, Bacteria, Fungi, Protozoa
INFECTIOUS AGENT
Source of agent, a place a microbe can grow, survive, or multiply (human, animals, food, water, others)
RESEVOIR
Airborne Transmission, Direct Contact, Vector Borne Transmission, Droplets
MODE OF TRANSMISSION
Orifices of the body, also through the mucus membranes and breaks in the skin
PORTAL OF ENTRY
Immunocompromised Adults, Elderly, Newborns, Unvaccinated, Those with acute and chronic diseases
SUSCEPTIBLE HOST
- Safe handling of specimens in the laboratory
- Biohazard Signs, Universal Precautions
LABORATORY MEASURES