(8) 4TH COMMUNICABLE DISEASE

• COMMUNICABLE DISEASE

  • Disease that can be transmitted from one being to another
• MODE OF TRANSMISSION

  Direct

  • requires physical contact with an infected person
  • Saliva, blood, open wounds, skin to skin contact & sexual

   

  Indirect

  • Airborne -  droplets, dust (air)
  • Vehicle-born - transmitted via objects (things)
• Common pathogens


  • Bacteria
  • Virus
  • Rickettsia
  • Fungi
  • Protozoans
  • Parasitic Worms
• Bacteria


  One celled microscopic organism
• Types of bacteria


  • Saprophytes
  • Parasites
• Saprophytes


  Bacteria that digest non-living food like milk and meat
• Parasites


  Bacteria that eats/gets supply of food by living plants and animals
• Toxin bacteria


  Certain toxin/poison
• Toxin bacteria


  • Botulism - food poison
• Toxin bacteria


  • Lives in the soil
  • Can cause death/severe body aches/etc.
• Resident bacteria


  • Live in human mouth and intestine
  • Cause infections when it moves from where residents are
• Resident bacteria


  • Lactobacilli - intestinal tract lactic acid (preventing intestinal damage caused by certain bacterial infections)
• Virus


  • Worst human bodies enemy
  • Infects all living things
• Viruses


  • Cold Virus - nervous system, brain cell
  • Polio Virus
• Rickettsia


  • Grow in the intestinal tracts of insects
  • Carry ricketssias to human body by blood-sucking insects like lice & ticks
• Fungi


  • Cannot make their own food
  • Live in dark and damp/moist environment
• Fungi


  • Yeast
  • Mushroom
• Fungi


  Cause scalp infection through ringworm & Athlete's foot
• Protozoans


  • One celled microscopic
  • Places that has poor sanitation, bad cleanliness
• Protozoans


  • Amoeba (water) - amoebiasis (sick/disease)
• Parasitic Worms


  • Can be seen within the Naked Eye
  • Can reproduce if with the right environment/surroundings
  • Can enter in many ways such as food, water or etc...
• Parasitic Worms


  • Tapeworm
  • Pinworm