1. BACTERIA SIMPLE ONE-CELLED ANIMAL

3. COCCI ROUND OR SPHERICAL IN SHAPE

4. DIPLCOCCI COCCI OCCURS IN PAIRS DISEASES –GONORRHEA –MENINGITIS –PNEUMONIA

5. STREPTOCOCCI COCCI OCCURS IN A CHAIN DISEASES –SEVERE SORE THROAT –RHEUMATIC FEVER

7. STAPHYOLCOCCI COCCI OCCUR IN CLUSTERS OR GROUPS INFECTIONS –BOILS –WOUND INFECTIONS –TOXIC SHOCK

9. BACILLI ROD SHAPED SINGLES, PAIRS OR IN CHAINS FLAGELLA SPORES DISEASES –TB –TETANUS, DIPTHERIA AND TYPHOID

11. SPIRILLA SPIRAL OR CORKSCREW COMMA-SHAPED VIBRIO CORKSCREW SPIROCHETE Diseases –syphilis –cholera

13. PROTOZOA ONE CELLED ANIMAL

14. PROTOZOA ONE CELLED ANIMAL FOUND IN DECAYED MATERIALS AND CONTAMINATED WATER SOME ARE PATHOGENIC AND CAUSE DISEASE

15. PROTOZOA DISEASE MALARIA, AMEBIC DYSENTERY TRICHOMONAS AFRICAN SLEEPING SICKNESS

18. FUNGUS SIMPLE, PLANTLIKE ORGANISMS LIVE ON DEAD ORGANIC MATERIAL Yeasts Molds

19. FUNGAL DISEASES RINGWORM ATHELETE’S FOOT VAGINITIS THRUSH HISTOPLASMOSIS

20. THRUSH

21. RICKETTSIAE PARASITIC MICROORGANISMS CANNOT LIVE OUTSIDE THE CELLS OF ANOTHER LIVING ORGANISM FOUND IN FLEAS,LICE, TICKS, AND MITES TRANSMITTED TO HUMANS FROM BITE FROM THESE INSECTS

22. RICKETTSIAEL DISEASES TYPHUS FEVER ROCKY MOUNTAIN SPOTTED FEVER

24. VIRUSES SMALLEST OF MICROORGANISMS CANNOT REPRODUCE UNLESS THEY ARE INSIDE ANOTHER LIVING CELL SPREAD FROM HUMAN TO HUMAN THROUGH BLOOD AND BODY FLUIDS

25. VIRAL DISEASES HEPATITIS B AIDS COMMON COLD MEASLES MUMPS CHICKEN POX WARTS HERPES POLIO INFLUENZA

26. FACTORS REQUIRED FOR GROWTH WARM ENVIRONMENT DARKNESS SOURCE OF FOOD AND MOISTURE OXYGEN –AEROBIC ORGANISM REQUIRES OXYGEN TO LIVE –ANEROBIC ORGANISM LIVES AND REPRODUCES IN ABSENCE OF OXYGEN

27. CLASSIFICATONS OF DISEASES AND INFECTIONS ENDOGENOUS- infection or disease originates within the body. EXOGENOUS-infection or disease originates outside the body. NOSOCOMIAL-infection or disease acquired by and individual in a health care setting. OPPORTUNISTIC- infections that occur when the body’s defenses are weak.

28. CHAIN OF INFECTION factors that must exist for disease to occur and spread CAUSATIVE AGENT RESERVOIR PORTAL OF EXIT MEANS OF TRANSMISSION PORTAL OF ENTRY SUSCEPTIBLE HOST

29. The Chain of Infection

30. As healthcare professionals, it is important to understand two facts about infection As healthcare professionals, it is important to understand two facts about infection:

31. 1.The various ways infection can be transmitted. 2. The ways the infection chain can be broken.

32. There are six links in the chain of infection:

33. 1st - The Infectious Agent - Any disease-causing microorganism (pathogen)

34. The Chain of Infection Infectious Agent

35. 2nd - The Reservoir Host - The organism in which the infectious microbes reside

36. The Chain of Infection Reservoir HostInfectious Agent

37. Hosts that do not show any outward signs or symptoms of a disease, but are still capable of transmitting the disease are known as carriers. What are “Carrier Hosts?”

38. 3rd - The Portal of Exit - Route of escape of the pathogen from the reservoir Examples: respiratory secretions, blood exposure, breaks in skin

39. The Chain of Infection Reservoir Host Portal of Exit Infectious Agent

40. 4th - The Route of Transmission -Method by which the pathogen gets from the reservoir to the new host

41. The Chain of Infection Reservoir Host Portal of Exit Mode of Transmission Infectious Agent

42. Transmission may occur through: Direct Contact

43. Air

44. Insects

45. 5th - The Portal of Entry -Route through which the pathogen enters its new host

46. Respiratory System inhalation

47. Gastrointestinal System ingestion

48. Breaks in Protective Skin Barrier

49. The Chain of Infection Reservoir Host Portal of Exit Mode of Transmission Portal of Entry Infectious Agent

50. 6th - The Susceptible Host - The organism that accepts the pathogen The support of pathogen life and its reproduction depend on the degree of the host’s resistance.

51. Organisms with strong immune systems are better able to fend off pathogens.

52. Organisms with weakened immune systems are more vulnerable to the support and reproduction of pathogens.

53. The Chain of Infection Reservoir Host Portal of Exit Mode of Transmission Portal of Entry Susceptible Host Infectious Agent

54. ENDING THE CHAIN OF INFECTION If any part of the chain can be eliminated the spread of disease or infection will be stopped. Follow practices to break chain prevent transmission of disease

55. - The essential part of patient care and self-protection. How to interrupt the chain of infection:

56. 1. Pathogen Identification -Identification of infectious agent and appropriate treatment

57. 2. Asepsis and Hygiene -Potential hosts and carriers must practice asepsis and maintain proper personal hygiene

58. Aseptic Techniques Major way to break chain of infection Two main terms –Asepsis Absence of disease producing micro-organisms or pathogens –Contaminated Any object or area that may contain pathogens

59. ASEPTIC TECHNIQUE Maintaining cleanliness and eliminating or preventing contamination

60. Common Aseptic Techniques Hand-washing Good personal hygiene Use disposable gloves when contacting body secretions or contaminated objects Proper cleaning of instruments and equipment

61. Levels of aseptic control Antisepsis –Prevent or inhibit the growth of pathogenic organisms –Not effective against spores and viruses –Can usually be used on the skin Examples: –Alcohol and betadine

62. Disinfection Destroys or kills pathogenic organisms Not always effective against spores and viruses Boiling water and chemical disinfectants are used Can irritate or damage the skin and are used mainly on objects, not people

63. Sterilization Process that de4stroys all microorganisms –Both pathogenic and nonpathogenic –Includes spores and viruses Steam under pressure, gas, radiation, and chemicals can be used to sterilize Autoclave is most common equipment used

64. 3. Control Portals of Exit -Healthcare personnel must practice standard precautions:

65. Control body secretions and wash hands according to protocol.

66. 4. Prevent a Route of Transmission - Prevent direct or indirect contact by: 1.Proper handwashing 2.Disinfection & sterilization techniques 3.Isolation of infected patients 4.Not working when contagious

67. 5. Protect Portal of Entry -Healthcare professionals must make sure that ports of entry are not subjected to pathogens. (nose, mouth, eyes, urinary tract, open wounds, etc.)

68. 6. Recognition of Susceptible Host -Healthcare professionals must recognize and protect high-risk patients.

69. Cancer Patients AIDS Patients Transplant Patients Infants Elderly Patients

70. Summary Important for health care worker to know and use proper aseptic techniques Prevents spread and transmission of disease.

71. “Remember--breaking the chain of infection is the responsibility of each healthcare professional.”

72. http://www.youtube.com/watch?v=bDb- WjgoZtQhttp://www.youtube.com/watch?v=bDb- WjgoZtQ