Classifications of Pathogenic Bacteria Cocci- round shaped, appear singly or in groups – Staphylococci-pus- forming grow in clusters (abscesses, pustules and boils) – Streptococci-pus-forming, grow in chains(strep throat, blood poisoning) – Diplococci-grow in pairs (pneumonia
Classifications of Pathogenic Bacteria Bacilli- short, rod- shaped bacteria (lockjaw, typhoid fever and tuberculosis) Spirilla- spiral or corkscrew shaped (syphillis or Lyme disease
Movement of Bacteria Cocci-transmitted in air, dust or within substance on which they settle. Bacilli and spirilla are motile and have slender, hair-like extensions known as flagella or cilia for locomotion.
Growth and Reproduction Active Stage-grow and reproduce-warm, dark, damp places-sufficient food available Divide into two new cells – mitosis Inactive (spore forming stage)-form spherical spores with tough outer covering for protection-cannot be harmed by disinfectants When conditions are favorable they grow and reproduce.
Bacterial Infections When body tissues are invaded by pathogenic bacteria. Local infection- pimple or abscess General infection- carried by bloodstream to all parts of the body.
Bacterial Infections Contagious spread – Unclean hands, implements or towels, uncovered coughing or sneezing
Viruses submicroscopic –capable of infesting almost all plants and animals- live by penetrating cells and becoming a part of them.
Hepatitis Virus Hepatitis A-3 weeks –vaccine available, Hepatitis B long term cirrhosis, vaccine available, Hepatitis C-no vaccine available
HIV/AIDS Human Immunodeficiency Virus-Acquired Immune Deficiency Syndrome
How Pathogens Enter the Body Break in the skin Mouth Nose Eye or ears Unprotected sex
Principles of Prevention Decontamination- removal of pathogens from tools and surfaces by physical or chemical means. 3 levels of decontamination
Sterilization Highest level of decontamination Completely destroys every organism. Methods include steam autoclave and dry heat
Disinfection Controls microorganisms on nonporous surfaces. Does not kill bacterial spores.
Disinfectants Disinfectants chemical agents used to destroy most bacteria and viruses. Disinfectants are not for use on human skin, hair or nails.
Disinfectants Quats-quaternary ammonium compounds-–non-toxic, fast acting Phenols-not recommended for rubber and plastic items Alcohol -70% (ethyl, 99% for Isopropyl Bleach
Disinfecting Implements Pre-clean implements & tools. Rinse thoroughly Put on gloves and safety goggles Mix solution according to manufacturers directions Immerse tools or implements required time Remove implements Rinse and dry thoroughly Store in clean, closed dry disinfected container.
Requirement For ALL Students concerning dirty implements. Every student must have at their station the following: Zip lock baggie marked “pre- sanitized implements” for their clean combs and brushes. Zip lock baggie marked “soiled implements”. Make sure each student cleans dirty combs and brushed with hot water and soap, the place in wet sanitizer. Station inspections will be performed regularly without prior notice.
Blood Spill Disinfection Stop service and clean injured area. Use gloves or finger guard Apply antiseptic Cover injury with band- aid or other dressing Clean workstation Discard contaminated objects Double-bag, use biohazard sticker Remove gloves, wash hands with soap and water Disinfect contaminated items by full immersion in EPA-hospital grade disinfectant
Sanitation “To significantly reduce the number of pathogens or disease producing organisms found on a surface” Proper washing of hands before and after each client.
Your Professional Responsibility Protect you client’s health and safety as well as your own. Never take shortcuts with sanitation and disinfection. Follow the rules of safety and sanitation always.
SANITATION IS EVERYONE’S RESPONSIBILITY THE BUCK STOPS HERE!! INSTRUCTORS, STUDENTS, STAFF AND ADMINISTRATORS
Assignment 1. Complete the Infection Control Pyramid in your Study Guide 2. Complete the Brain Conditioner section