immunity from disease n.
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Immunity from Disease. What is a infectious disease?. Pathogen causes A change that disrupts the homeostasis in the body. Main agents can be Bacteria Protozoans Fungi Viruses Sources can be soil contaminated water and infected animals (that includes us) . Bacteria.

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Immunity from Disease


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what is a infectious disease
What is a infectious disease?
  • Pathogen causes A change that disrupts the homeostasis in the body.

Main agents can be

    • Bacteria
    • Protozoans
    • Fungi
    • Viruses

Sources can be soil contaminated water and infected animals (that includes us)

two protozoans and a sponge for 4 flutes
Two Protozoans (and a Sponge)for 4 Flutes
  • The protozoans, of which there are over 30,000 species, are primitive, single-celled organisms, of which the best known example is probably the amoeba. Paramecium caudatum is one of the most common freshwater ciliates. The nasty-sounding Plasmodium virax is the malaria parasite; like many parasites it has a complex life-cycle involving several hosts, and exists in several forms. Sponges are the most primitive group of multi-cellular animals. The Bath Sponge Euspongia mollissima finds itself in this piece on the strength of it's mellow name.

http://www.jsimonvanderwalt.com/catalog/plasmo.mid

fungi http www ucl ac uk pharmacology dc bits fungi pics1 04m jpg
Fungihttp://www.ucl.ac.uk/Pharmacology/dc-bits/fungi-pics1-04m.jpgFungihttp://www.ucl.ac.uk/Pharmacology/dc-bits/fungi-pics1-04m.jpg
  • http://www.microbe.org/microbes/fungi1.asp
  • http://waynesword.palomar.edu/ww0504.htm
  • http://waynesword.palomar.edu/slime1.htm
  • The Kingdom Fungi are important organisms, both in terms of their ecological and economic roles.
  • They breaking down dead organic material,
  • , most vascular plants could not grow without the symbiotic fungi, or mycorrhizae, that inhabit their roots and supply essential nutrients
  • . Other fungi provide numerous drugs (such as penicillin and other antibiotics), foods like mushrooms, truffles and morels, and the bubbles in bread, champagne, and beer.Fungi also cause a number of plant and animal diseases:
  • in humans, ringworm, athlete's foot, and several more serious diseases are caused by fungi.
  • . Plant diseases caused by fungi include rusts, smuts, and leaf, root, and stem rots, and may cause severe damage to crops.
viruses
Viruses
  • Made of protein coat
  • Are they living?
    • What are the criteria for life?
      • Don’t respire
      • Don’t grow
      • Don’t develop
      • CAN make copies of themselves but only with hosts help
      • Named after the illness or organ they infect.
from birth symbiotic relationships are established
From birth symbiotic relationships are established
  • You are “inoculated” with microorganisms on your
  • skin
  • upper respiratory system,
  • lower urinary and reproductive tracks
  • Lower intestinal track
how they help
How they help
  • They maintain equilibrium within the body by keeping other microorganisms from growing
  • Can become potential pathogens when
    • Conditions change and helpful organisms are eliminated
    • Beneficial bacteria enter areas of the body where they are not normally found
    • Body becomes weakened or injured
infectious disease
Infectious disease
  • Caused by the presence of pathogens
  • Not all diseases caused by pathogens some are
  • Inherited
  • Caused by wear and tear
  • Caused by exposure to chemicals (cirrhosis )
  • Malnutrition (scurvy)
how are pathogens spread
How are Pathogens Spread
  • Must have continual source of the pathogen
    • Living -
      • Carriers human/ other animals
        • Incubation period- don’t show it yet
    • Dead
    • Inanimate object soil/ water
      • Fungi
      • botulism
      • Intestinal parasites from water
transmission
Transmission
  • Four ways
    • Direct contact- Cold, STD’S
    • By an object- money, toys, towels
    • Through the air- Cough, sneezes..
    • By an intermediate organism (vector)
      • West Nile virsus-
      • Lyme disease-
      • Bubonic plague